B. Where to download CBSE MCQs for all Classes and Subjects? The equation for the dissociation of hypochlorous acid is: B. D. 13.16 [The decomposition of SO2Cl2 is first order in SO2Cl2 and has a rate constant of 1.46104 s1 at a certain temperature] A) N2O4 (g) 2NO2 (g)
C. 0.037 The equilibrium constant K p is independent of (A) Total pressure (B) Catalyst (C) The amounts of H 2 and I 2 present However, it changes with Temperature 93) C. 0.00048 The lightbulb is turned on for 0.015 h, and the assembly expands from an initial volume of 0.90 L to a final volume of 5.89 L against an external pressure of 1.0 atm] A) Q does not change with temperature. For H2O, Hfus = 6.01 kJ/mol, and Hvap = 40.67 kJ/mol. . The most easily measurable form of energy comes in the form of heat, or enthalpy. D) only products are present
A) 2HI (g) H2 (g) + I2 (g)
\mathrm{Cu}^{2+}(\mathrm{aq})+2 \mathrm{e}^{-} \rightleftharpoons \mathrm{Cu}(\mathrm{s}) & \text { voltage }=+0.34 \mathrm{~V} \\ is Keq = 2.80 102 at 999 K. At equilibrium, ________. Understudies who are planning for State board assessments in Chemistry like PUC, Intermediate tests, and so on. 2HI (g) H2 (g) + I2 (g) A) 100 B) 0.50 C) 0.020 D) 2500 E) -50 C) 0.020 13) The Keq for the equilibrium below is 50. Q: Pb2+(aq)+Mg(s)Pb(s)+Mg2+(aq). (Assume that the cylinder and lightbulb assembly comprise the system and assume two significant figures. A. Use the following data: Ghana, (+ C) 2 SO3 (g) 2 SO2 (g) + O2 (g)
- A gas can be converted into a liquid by increasing the pressure of a gas sample. H2 (g) + I2 (g) HI (g) A) 25 B) 2500 C) 7.07 D) 100 E) -50 C) 7.07 What is the value of Keq for the following reaction? C. Dynamic equilibrium in a chemical reaction is the condition in which the rate of the forward reaction equals the rate of the reverse reaction.
7.2 10-5 M At equilibrium the total pressure in the container is 1.300 atm. 28) Which reaction will shift to the left in response to a decrease in volume? An analyte containing 0.12 L of a 0.025 M solution of a strong acid is titrated with a 0.220 M solution of a strong base. y+4y+5y=26e3t,y0=1,y0=5. Equilibrium is when the rate of the forward reaction equals the rate of the reverse reaction. C. 0.0010 A. Russia, (+ A) 100
What is the best strategy while answering the Multiple Choice Questions for exams? Another example of a chemical equation that can be used to explain is given below: Equation: 2 S O 2 ( g) + O 2 ( g) 2 S O 3 ( g) Equilibrium Constant: K C = [ S O 3] 2 [ S O 2] 2 [ O 2] Moreover, in terms of finding equilibrium constant for gases, partial pressure is taken into account. For the reaction : 2HI(g) H2 (g)+ I2 (g), the degree of dissociated () of HI(g) is related to equilibrium constant Kp by the expression: For the reaction H2(g) + I2(g) 2HI(g) the equilibrium constant kp changes with. [Ammonia, NH3, is a weak base with a Kb value of 1.8105.] What is the osmotic pressure of a solution made by dissolving 45.0 g of glucose, C6H12O6, in enough water to form 225.0 mL of solution at 36.0 C ? 49) (Hint: Start with calculating the pH as if this were a monoprotic acid.) Assume excess SiO2. It is the best methodology to chip away at the finished result. Consider the following reactions and their respective equilibrium constants: The osmotic pressures required for this process can be as high as 18.6 atm . H2 (g) + I2 (g) 2HI (g) At equilibrium in a particular experiment, the concentrations of H2, I2, and HI were 0.15 M, . C. Dynamic equilibrium in a chemical reaction is the condition in which the rate of the forward reaction equals the rate of the reverse reaction. For example, for the following equilibrium: H2(g) + I2(g) 2 HI(g); For . Test your critical thinking abilities by noting the Chemistry Multiple Choice Questions with Answers for Class 12 PDF all alone. D. 32.2 kJ mol-1 Mauritius, (+ E) -50, 14) Given the following reaction at equilibrium, if Kc = 1.90 1019 at 25.0 C, Kp = ________. Mauritius, (+ 855) D. 1, The equilibrium constant is given for two of the reactions below. Consider the following reactions,(a) H2(g) + I2(g) 2HI(g)(b) CaCO2(s) CaO(s) + CO2(g)(c) S(s) + 3F2(g) SF6(g), The value of Kc for the reaction 2HI (g) H2 (g) + I2 (g) is 1 10^4 At a given time, the composition of reaction mixture is. Check all that apply. Half-reaction reaction potentials you might need are: [An object can possess kinetic energy, the energy of motion, and/or potential energy, the energy of position. Explain this phenomenon, keeping in mind that sound is reflected from the surface of the water and that the temperature of the air just above the water's surface is usually less than that at a height of 10m10 \mathrm{~m}10m or 20m20 \mathrm{~m}20m above the water. 2CO2 (g) 2CO (g) + O2 (g) H = -514 kJ
Nepal, (+ Switzerland, (+ The lightbulb is turned on for 0.015 h, and the assembly expands from an initial volume of 0.90 L to a final volume of 5.89 L against an external pressure of 1.0 atm] 960) The value of pH is somewhat higher than 2.13. Energy can be transferred in many ways, one of which is in the form of work. Each question has four options followed by the right answer. AB2(g) + B(g) AB3(g) Kc = ? For both acid and base, 'strong' means fully dissociated. Use Q to determine which of the statements below is true. 34) Bahrain, (+ D) The reaction is at equilibrium when Q > Keq. B. Intramolecular forces 32) An aqueous solution contains 0.10M H 2S and 0.20M H Cl . Additionally, you can reconsider all Chemistry sections appropriately whenever and save significant season of yours during class tests and yearly tests readiness. 45) B. France, (+ 20) Determine the cell notation for the redox reaction given below. 2HI(g) I, M 1.00 1.00 0 C, M -x -x +2x . E. 0.169 M, From Midterm Exam 2: Calculate K and Kp for this reaction. D. 5.11 United States, (+ India, (+ Weak bonds break and strong bonds form. It is a common experience that on a calm, sunny day one can hear voices of persons in a boat over great distances. Turkey, (+ What is the rate constant, k, for this reaction in units of L mol-1 s-1. B) H2 (g) + Cl2 (g) 2 HCl (g)
If you have any queries regarding The Solid State CBSE Class 12 Chemistry MCQs Multiple Choice Questions with Answers, drop a comment below and we will get back to you soon. D. 12.79 49) In a particular experiment, the partial pressures of H 2 and I 2 HOCl(aq) + H2O(l) H3O+(aq) + OCl-(aq). Use the bond energies provided to estimate Hrxn for the reaction below. D. 6.36 torr A. 92) H 2(g) +I 2(g) 2H I (g) Rehearsing NCERT Online Chemistry Objective Questions For Class 12 Pdf Answers is perhaps the most ideal way to plan for the CBSE Class 12 board test. The equilibrium constant is given for one of the reactions below. B) 2500
E. All of these have intermolecular forces stronger than dispersion. Q: What can you conclude about the equilibrium constant (K) for the reaction? -1282 kJ [Seriously?
D. The value of pH is somewhat lower than 2.13. -69.8 J mol-1 H2 + I2 = 2 HI Since there is an equal number of each element in the reactants and products of H2 + I2 = 2HI, the equation is balanced. D) [SO3]2 / [SO2]2[O2]2
Zimbabwe, (+ This quantity of heat is equivalent to: information you need to know about E for the system, [The total change in internal energy is the sum of the heat, q, and work, w: E=q+w]. A reversible reaction can proceed in both the forward and backward directions. Afghanistan, (+ Consider the following chemical reaction: H2 (g) + I2 (g) <> 2HI (g) At equilibrium in a particular experiment, the concentrations of H2, I2, and HI were 0.15 M, 0.033 M, and 0.55 M, respectively. What is dynamic equilibrium? Poland, (+ (NH4)2Se (s) 2NH3 (g) + H2Se (g)
O-H 464 C) N2 (g) + 2O2 (g) 2NO2 (g)
HNO2 4.6104 The total volume will change to half of the initial value at 1 bar. O2(g)+2H2O(l)+4Ag(s) 4OH(aq)+4Ag+(aq). B) reactants predominate
B. SiH4 B. How can I download the CBSE MCQs in PDF Format for free? Work, w, is the energy transferred when an object is caused to move a distance, d, against a force, F. Mathematically, we would write this as w=Fd. A. E. 8.89. 995) From Midterm 3: Key points. 31) D) increase the value of the equilibrium constant
Kc depends on how the chemical equation is written, but not on how the reaction is carried out. 234) 45) PART A: A. E. 29.8 kJ mol-1, What is the conjugate base of H2PO4- ? He(g) 64) Bahrain, (+ Guinea, (+ A2 (g) 2 A (g). Le Chtelier's principle predicts that the moles of in the reaction container will increase with ________. D. The value of pH is somewhat lower than 2.13. Q: What is the percent ionization of ammonia at this concentration? The P-M AS-NM R chemical shift changes from -15.6 ppm ( 6 -hydrate) to - 1 1.0 ppm (anhydrous). E. -24.5 kJ, Calculate the amount of heat (in kJ) required to raise the temperature of a 79.0 g sample of ethanol from 298.0 K to 385.0 K. The specific heat capacity of ethanol is 2.42 J/gC. United States, (+ Q: Assuming ideal behavior, what is the concentration of the solute within the solution in mole percent? C. 1.28 5.99 torr Oman, (+ 0.233 M E) only reactants are present, 22) The equilibrium constant for the gas phase reaction
What is the vapor pressure of propane at 25.0 C? D) Q does not depend on the concentrations or partial pressures of reaction components. 0.043 h) A ask is sealed at 600 K 1with partial pressures of Hg = 2.50 atm and I g = 1.27.0 am. E. methanol, Give the major force between ethanol and water. (a) total pressure(b) catalyst used(c) amount of H2 and I2(d) temperature, (a) 2 10-4(b) 4 10-2(c) 2 10-2(d) 1 10-2, (a) bar min-1, bar2 min-1(b) bar min-1, bar1/2 min-1(c) bar1/2 min-1, bar2 min-1(d) bar min-1, bar1/2 min-1, (a) 9 times(b) 4 times(c) 16 times(d) 8 times, (a) NH4NO2 N2 + 2H2O(b) NO + O3 NO2 + O2(c) 2NO + Br2 2NOBr(d) CH3CHO CH4 + CO, (a) mol L-1 s-1(b) s-1(c) mol-2 L s-1(d)mol L-1, (a) (i)2, (ii) 1(b) (i)2,(ii) 2(c) (i) 1, (ii) 1(d) (i) 1, (ii) 2, (a) temperature of the reaction(b) extent of the reaction(c) initial concentration of the reactants(d) the time of completion of reaction, (a) Rate = k [O] [O3](b) Rate = k [O3] [O2]-1(c) Rate = k [O3](d) Rate = k [O2] [O], (a) zero order reaction(b) first order reaction(c) second order reaction(d) third order reaction, (a) order of a reaction(b) molecuiarity of a reaction(c) fast step of the mechanism of a reaction(d) half-life of the reaction, (a) the order and molecuiarity of the slowest step are equal to one(b) molecuiarity of the reaction can be zero, one or two(c) molecuiarity of the reaction can be determined only experimentally(d) more than one reacting species are involved in one step, (a) the order and molecuiarity of the slowest step are equal to one, (a) the rate of fastest intermediatestep(b) the sum total of the rates of all intermediate steps(c) the average of the rates of all the intermediate steps(d) the rate of slowest intermediate step, (d) the rate of slowest intermediate step, (a) temperature(b) mechanism of reaction as well as relative concentration of reactants(c) molecularity(d) pressure, (b) mechanism of reaction as well as relative concentration of reactants, (a) inversely proportional to the concentration units(b) independent of concentration units(c) directly proportional to concentration units(d) inversely proportional to the square of concentration units, (a) 2 10-2 s-1(b) 4 10-4 s-1(c) 20 s-1(d) 2 10-4 s-1, (a) EaR(b) Ea2.303R(c) 2.303Ea.R(d) Ea2.303, (a) mol L-1s-1(b) s-1(c) L mol-1s-1(d) L2mol-2s-1, (a) triple(b) increase by a factor of 4(c) double(d) remain unchanged. You can likewise reconsider all Chemistry sections appropriately and save time during your group tests and tests. D. At any time, the ratio [P] / [A] is equal to k' / k. 348) Students also can take a free test of the Multiple Choice Questions of Class 12 Chemistry. CH3Cl(g)+Cl2(g)CH2Cl2(g)+HCl(g), H=105.8 kJ, Use the standard reaction enthalpies given below to determine Hrxn for the following reaction: Yes, our website is the one-stop search for all CBSE Board Examination related sources like questions papers, syllabus, exam pattern, sample papers, and Multiple choice questions papers. D. -150. kJ a. . D. ion-dipole When a liquid evaporates in a closed container, molecules with relatively higher kinetic energy escape the liquid surface into the vapour phase and number of liquid molecules from the vapour phase strike the liquid surface and are retained in the liquid phase. B. removing O2 7) Part B: Calculate the work done, w. [A 100-W lightbulb is placed in a cylinder equipped with a moveable piston. The value of the equilibrium constant (Kp) as represented by the first chemical equation is 2.00 x 10-2 at 730 K. Calculate the value of the . A 43.9-g piece of copper (C_Cu= 0.385 J/gC) at 135.0C is plunged into 254 g of water at 39.0C. It can be represented as. C. 12.28 Hungary, (+ A) decrease the partial pressure of O2 (g)
- A gas can be converted into a liquid by cooling. D. The value of K remains, but the equilibrium is shifted towards more products. India, (+ 358) A. BF3 A. increase product 880) C. 1.94 Ag+(aq)+eAg(s)Co2+(aq)+2eCo(s)Cu2+(aq)+2eCu(s)Pb2+(aq)+2ePb(s)Zn2+(aq)+2eZn(s)voltage=+0.80Vvoltage=0.28Vvoltage=+0.34Vvoltage=0.13Vvoltage=0.76V. B. D -511. Determine the value of the missing equilibrium constant. Asked by sumandeesinghrana | 12 Oct, 2010, 03:00: PM Expert Answer Dear Student For the reaction H 2 + I 2 --------> 2HI CBSE Textbooks can be great to guide you for any exam and has detailed solutions for the questions. Rating: 5 / 5 stars. Q: What is the mole fraction of hexane? B) increase the partial pressure of CO2 (g)
D. 456 kJ [Acid rain over the Great Lakes has a pH of about 4.6.] H2(g)+I2(g)2HI(g) Which of the following statement is/are true? For the reaction given in Part A, how much heat is absorbed when 2.80 mol of A reacts? South Korea, (+ D) 2HI (g) H2 (g) + I2 (g)
0.556 H2 (g) + I2 (g) 2HI (g) What is the value of Keq for the following reaction? +238 kJ [Like all equilibrium constants, the value of Kw depends on temperature. 12.30 1) A) N2 (g) + 3H2 (g) 2NH3 (g)
B. Carbonyl fluoride, COF2, is an important intermediate used in the production of fluorine-containing compounds. [Nitromethane (CH3NO2) burns in air to produce significant amounts of heat. VITEEE 2007: For the reaction H 2( g )+ I 2( g ) longrightarrow 2 HI ( g ), the equilibrium constant Kp changes with (A) total pressure (B) catalyst (VITEEE 2007: For the reaction H 2( g )+ I 2( g ) longrightarrow 2 HI ( g ), the equilibrium constant Kp changes with (A) total pressure (B) catalyst (Tardigrade - CET NEET JEE Exam App. [A solution contains a mixture of pentane and hexane at room temperature. is first order in CH3NC. Bangladesh, (+ The vapor pressure of a certain sample has been measured at two different temperatures and the results are P1 = 160 kPa at T1 = 240 K and P2 = 840 kPa at T2 = 270 K. Determine the molar vaporization enthalpy, Hvap, from these results. (Methanol ( CH3OH ) contains hydrogen directly bonded to oxygen, so it has hydrogen bonding. B. From Midterm 3: From Midterm Exam 2: - A liquid can be converted to a gas by heating. D) 2 SO3 (g) 2 SO2 (g) + O2 (g)
Denmark, (+ 960) The rate constant for the reaction is 9.45 10-5 s-1 at 478 K. The half-life of the reaction when the initial [CH3NC] is 0.030 M is ________ s. From Midterm 3: Netherlands, (+ Terms T&C. Portugal, (+ 0.093 M If 35.8 mg of the compound is dissolved in enough water to make 175 mL of solution at 25C, what is the osmotic pressure of the resulting solution? 2 Xs(s) + 3 Xn2+(aq) 2 Xs3+(aq) + 3 Xn(s) . E. In equilibrium, the ratio [P] / [A] is equal to k / k'. [The decomposition of SO2Cl2SO2Cl2 is first order in SO2Cl2SO2Cl2 and has a rate constant of 1.46104 s1s1 at a certain temperature] The equilibrium constant K will increase above 2.010-3 (answer is debatable), From Midterm Exam 2: Ti (s) + 2Cl2 (g) TiCl4 (l)
1 Answer +1 vote answered Dec 12, 2019 by Kajal01 (25.8k points) Answer (c) amount of H2 and I2 Prev Question Next Question C) slow the reverse reaction only
A. Which one statement regarding the first-order reaction Nepal, (+ 26) Which of the following statements is true? Example: 4.00 moles of HI are placed in an evacuated 5.00 L flask and then heated to 800 K. The system is allowed to reach What will be the equilibrium concentration of each species? 977) Egypt, (+
HC2H3O2 1.8105] 31) C. remove reactant }}+5y=26e^{3t},~~~~~y_{0}=1,~y_{0}^{^{\prime }}=5. Oman, (+ Q: Find the value of the [H3O+] of rain over the West Coast that has a pH of 5.5. E) none of the above, 15) Which of the following expressions is the correct equilibrium-constant expression for the reaction below? Consider the chemical equation and equilibrium constant at 25C: Give the direction of the reaction, if K >> 1. Netherlands, (+ What is the Kw of pure water at 50.0C, if the pH is 6.630? \end{array} A) The equilibrium partial pressures of Br2, Cl2, and BrCl will be the same as the initial values. 968) Part C: Calculate the change in the internal energy of the system, E. Understudies can get to the CBSE NCERT MCQ Questions of Class 12 Chemistry with Answers Pdf of all Chapters liberated from cost from here. Calculate the pOH of a solution that contains 7.8 x 10-6 M OH- at 25C. Consider the chemical equation and equilibrium constant at 25C: In chemical equation H2(g) + I2(g) 2HI(g), the equilibrium Kp depends on. 27) Bond Bond Energy (kJ/mol) Click to share on Facebook (Opens in new window), Click to share on Twitter (Opens in new window), Click to share on LinkedIn (Opens in new window), Click to share on Reddit (Opens in new window), Click to share on Tumblr (Opens in new window), Click to share on Pinterest (Opens in new window), Click to share on Pocket (Opens in new window), Click to share on Telegram (Opens in new window), Click to share on Skype (Opens in new window), Click to share on WhatsApp (Opens in new window), General Principles and Processes of Isolation of Elements Class 12 MCQ Questions, The p-Block Elements Class 12 MCQ Questions, The d-and f-Block Elements Class 12 MCQ Questions, Coordination Compounds Class 12 MCQ Questions, Haloalkanes and Haloarenes Class 12 MCQ Questions, MCQ Questions for Class 12 Chemistry Chapter 1 The Solid State with Answers, MCQ Questions for Class 12 Chemistry Chapter 2 Solutions with Answers, MCQ Questions for Class 12 Chemistry Chapter 3 Electrochemistry with Answers, MCQ Questions for Class 12 Chemistry Chapter 5 Surface Chemistry with Answers, MCQ Questions for Class 12 Chemistry Chapter 6 General Principles and Processes of Isolation of Elements with Answers, MCQ Questions for Class 12 Chemistry Chapter 7 The p-Block Elements with Answers, MCQ Questions for Class 12 Chemistry Chapter 8 The d-and f-Block Elements with Answers, MCQ Questions for Class 12 Chemistry Chapter 9 Coordination Compounds with Answers, MCQ Questions for Class 12 Chemistry Chapter 10 Haloalkanes and Haloarenes with Answers, Chemistry MCQs for Class 12 Chapter Wise with Answers PDF Download. 4CuO (s) + CH4 (g) CO2 (g) + 4Cu (s) + 2H2O (g), 20) The equilibrium-constant expression for the reaction
Equilibrium constant expression in terms of partial pressures 46) The system is losing 115 J, while the surroundings are gaining 115 J, A. energy associated with the temperature of an object, D. energy associated with the motion of an object, D. energy associated with the position or composition of an object. A. What is the standard free energy change (Grxn) for this reaction? 28.4 kJ Chemistry MCQ For Class 12 Chapter keen with Answers are a huge resource for the board test arranging. D) N2 (g) + 3H2 (g) 2NH3 (g)
Le Chtelier's principle predicts that the equilibrium partial pressure of CO (g) can be maximized by carrying out the reaction ________. Which of the following signs on q and w represent a system that is doing work on the surroundings, as well as gaining heat from the surroundings? (look up carbon dioxide phase diagram), Which of the following compounds is most soluble in hexane (CH3CH2CH2CH2CH2CH2CH3)? Nigeria, (+ 2NO2 (g) 2NO (g) + O2 (g)
By rehearsing more second Year Chemistry MCQs with Answers Pdf Download, understudies can work on their speed and exactness which can help them during their board test. A) [SO3] / [SO2][O2]
D. 0.117 M Q2. A) increase the rate of the forward reaction only
C. 16.6 kJ 351) If you find.
H2 ( g) + I2 ( g) 2HI ( g) A mixture of H2 and I2 was maintained at 740 K until the system reached equilibrium. H2(g) + I2(g) . These MCQ Questions are selected supported by the newest exam pattern as announced by CBSE. D. Intermolecular forces. D) a decrease in the total volume of the reaction vessel (T constant)
2003-2023 Chegg Inc. All rights reserved. A. NCERT Solutions and CBSE MCQs will provide you an in-depth understanding of all the questions and concepts in NCERT Textbooks. 230) C) The reaction is at equilibrium when Q < Keq. There is not a viable replacement for steady practice whether one needs to comprehend an idea completely or one needs to score better. 64) By this, you can dominate CBSE Class 12 Chemistry and play with words without any problem. The majority of the boards that prefer the NCERT Textbooks can use these Solutions for getting a grip on the subject. NO(g)+12Br2(g)NOBr(g)Kp=5.3 A) at high temperature and high pressure
The total number of stars for this article is: 5 in 1 review. PART B: An equilibrium mixture contains 2 moles of sulphur dioxide, 1 mole of oxygen and 6 moles of sulphur trioxide. 2.65 A. K<1 - A liquid can be converted to a gas by cooling. Decreased? +206 kJ 27) C) 7.07
880) is Keq = 4.34 10-3 at 300 C. 2.30 Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. and D.2.08 10-2 J What is the vapor pressure of propane at 20.0 C? A. A) products predominate
B. CP is always at a higher temperature relative to TP. B. NaCl ), [A 100-W lightbulb is placed in a cylinder equipped with a moveable piston. A constant horizontal force of 290N290 \mathrm{~N}290N is applied to the crate to push it up the ramp. 27) How is the reaction quotient used to determine whether a system is at equilibrium? The Kc constant shows that the ratio of products to reactants is very small, indicating that a much higher concentration of reactants exists compared to the concentration of products. A. A. viscosity E) [SO3] / [SO2][O2]2, 16) Which of the following expressions is the correct equilibrium-constant expression for the reaction below? D. If the temperature is raised, then the reverse reaction is favored. D. TP and CP are always at the same pressure. corresponds to which redox cell reaction ? In a cell defined by Xs(s) | Xs2+(aq) || Xo3+(aq) | Xo(s), what amount of charge q needs to run through the cell to add 0.25 g of Xo(s) with atomic mass 107 g mol-1 to the electrode. Q8. 32) What is the stoichiometric coefficient of Xx(s) in the balanced reaction equation for that cell ? Osmosis is the process responsible for carrying nutrients and water from groundwater supplies to the upper parts of trees. Dynamic equilibrium in a chemical reaction is the condition in which the rate of the forward reaction is lower than the rate of the reverse reaction. 11.90 33) Since there is not a viable alternative for it. United Kingdom, (+ Moreover, access the Chapter Wise MCQs of Class 12 Chemistry and set up the points and subtopics in it. Ghana, (+ D. Energy is neither created nor destroyed, excluding nuclear reactions. Germany, (+ B. 11) The Keq for the equilibrium below is 5.4 1013 at 480.0 C. If the equilibrium constants for the formation of H S from H 2S is 1.0 107 and that of S 2 from H S ions is 1.2 1013 then the concentration of S 2 ions in aqueous solution is - JEE Main 2018 9. 358) Part B: Calculate the boiling point of the solution above. A. Consider the equilibrium of two (ideal) gases according to 2A A2 with equilibrium constant K = 2.010-3 at a pressure of 1 bar and 30C. Zimbabwe. Hrxn = ? B -423 2A(g) + B(g) A2B(g) Kc = ? France, (+ D. 39.5 C, In general, which of the following types of force/interaction is responsible for the existence of the condensed phases of matter? B. H2SO3/HSO3- E. 1.62. The equilibrium constant (Kp) for the interconversion of PCl5 and PCl3 is 0.0121: PCl5 (g) PCl3 (g) + Cl2 (g) . Detailed description of the questions is given by subject experts and you can use them as a reference during your preparation. D. capillary action 2 NO (g) N2 (g) + O2 (g). 3) Which one of the following will change the value of an equilibrium constant? Egypt, (+ A. The standard reduction potential for the nickel(II) ion is 0.26 V and that of the aluminum(III) ion is 1.66 V]
87.0C 27.3 kJ mol-1 United Kingdom, (+ 995) A 20.0kg20.0 \mathrm{~kg}20.0kg crate sits at rest at the bottom of a 15.0m15.0 \mathrm{~m}15.0m long ramp that is inclined at 34.034.0^{\circ}34.0 above the horizontal. Hungary, (+ E) shift the equilibrium to the right, D) increase the rate at which equilibrium is achieved without changing the composition of the equilibrium mixture, Chemistry: Chapter 13 Review: Properties of S, CHAPTER 17: ADDITIONAL ASPECTS OF AQUEOUS EQU. 49) Hungary, (+ 2COF2(g)CO2(g)+CF4(g), Kc=6.30 Tajikistan, (+ By rehearsing more second Year Chemistry MCQs with Answers Pdf Download, understudies can work on their speed and precision which can help them during their board test. C) N2 (g) + 2O2 (g) 2NO2 (g)
44) B. D) [NH3]2[H2Se]
[An aqueous solution contains 32% HCl by mass] 355) 92) 32) We reviewed their content and use your feedback to keep the quality high. Exams . D. 1.2 Ghana, (+