Which of the numbered responses lists all the following stresses that would shift the equilibrium to the right(favor the forward reaction), and no other stresses?2NOC((g) = 2NO(g) + Cl2(g) AH° = +75 kJ/molI.Add more NOCI.I.Remove some Cl2.II.Lower the temperature.IV.Add more NO.O I and IIIO Il and IVO I, II, and IIO I and IIO II, III, and IV

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Which of the numbered responses lists all the following stresses that would shift the equilibrium to the right (favor the forward reaction), and no other stresses? 2NOCI(g) = 2NO(g) + Cl2(g) AH° = +75 kJ/mol I. Add more NOCI. I. Remove some Cl2. II. Lower the temperature. IV. Add more NO. O I and III O Il and IV O I, II, and III O I and II O II, III, and IV

Which of the numbered responses lists all the following stresses that would shift the equilibrium to the right (favor the forward reaction), and no other stresses? 2NOCI(g) = 2NO(g) + Cl2(g) AH° = +75 kJ/mol I. Add more NOCI. I. Remove some Cl2. II. Lower the temperature. IV. Add more NO. O I and III O Il and IV O I, II, and III O I and II O II, III, and IV

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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The following reactions have been allowed to reach equilibrium. Consider the following changes that are introduced to the system and predict the direction of the equilibrium thift (to the left or to the nght). If no equilibrium shift is expected, write "no change". a. PCl (g)+Ch(g) PCl (g); some PCL is removed Ans. b. 2 SO (g) 2 SO:(g) + O:(g); pressure is increased Ans. c. COBR:(g)+ 18.2 kcal CO(g) + Bra:(g); temperature is increased Ans. d. 2 NOBr(g) 2 NO(g) + Br:(g); catalyst is added Ans. e. 2 NO(g) + Cl:(g)2 NOCI(g); exothemic; temperature is increased Ans. £ BACO (s) BaO(s) + CO:(g); Bao is added Ans. g PCl (g) + Cl(g) PCl-(g)+ energy; the reaction is cooled Ans. h. HPO, (aq) + H.O(I) PO, "(aq) + H.O (aq); NaOH is added Ans. i C:H. (g) +L(g) C:Hal: (g)+ heat; a catalyst is added Ans. j. AgBr (3) Ag (aq) +Br(aq); AgBr is added Ans.
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6. For the following reaction at equilibrium, which change will cause the equilibrium to shift to the right? 2NOBr(g) 2NO(g) + Bra(g) AH = +30 kJ/raw a) Decrease the container volume. b) Add some NO(g). c) Remove some NOBr(g). d) Increase temperature. e) Add a catalyst.
The decomposition of PCl5 occurs by the equilibrium process PCl5(g) = PCl3(g) + Cl2(g) DH, = 92.5 kJ mol–1 If the reaction is initially at equilibrium, explain what happens when the temperature is lowered. Select one: a. The equilibrium shifts left b. The concentration of Cl2(g) will increase c. No change d. The equilibrium shifts right
For the following reaction, which of changes listed below would cause more reactants to form when equilibrium is re- established? 2NO(g) + Cl₂(g) 2NOCI(g) + 75 kJ a. Add a catalyst. b. Increase the volume. C. Increase the temperature. d. Decrease the [NO] e. Increase the pressure.
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41. Given this reaction at equilibrium: 2C0(g) + 02(g)= 2C02(g). Which statement regarding the reaction is always true? * a. the rates of the forward and reverse reactions are equal O b. the reaction occurs in an open system O c. the masses of the reactants and the products are equal O d. the concentrations of the reactants and the products are equal 42. Which factors must be equal in a reversible chemical reaction at equilibrium? * a. the concentrations of the reactants and products O b. the potential energies of the reactants and products c. the activation energies of the forward and reverse reactions Od. the rates of reaction of the forward and reverse reactions
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