16. Identify the correct expression for Kc for the reaction:H2 (g) + I2 (g) = 2 HI (g)[H2][l2][HI]2А) К. —B) K. = [HI]²[HI]?C) K. =[HI]?D) K =[H2]17. For the reaction A(g) +B (g) = C (g), vou know that Kc = 51.0 at a certaintemperature. What will happen to the value of Kc if you add more A to theequilibrium mixture?A) It will go up.B) It will go down.C) It will stay the same.D) It is impossible to predict how Kc would change.18. You study the equilibrium reaction 2 A (aq) = B (aq) + C (aq). You place a 1.0M solution of A into an empty 1.0 L container. When you return later, you findthat the equilibrium concentration of B is 0.30 M. What is the value of Kc for thisreaction?A) 0.4B) 1.8C) 0.30D) 0.56 19. Oxygen (O2) and ozone (O3) form an equilibrium mixture according to thereaction:3 02 (g) = 2 O3 (g)At equilibrium, you measure the partial pressure of the O2 to be 1.2 atm and thepartial pressure of O3 to be 0.44 atm, What is the value for Kp of this reaction?A) 0.37B) 2.7C) 0.059D) 0.1120. Sulfur trioxide decomposes according to the reaction:2 SO3 (g) = 2 SO2 (g) + O2 (g)A 1.0 L flask is filled with 1.3 mol SO3, 1.0 mol SO2, and 0.20 mol O2 and allowed toreach equilibrium. If the temperature is chosen so that Kc = 0.0050, how will thereaction shift to reach equilibrium?A) towards the products because Q > KcB) towards the products because Q< KcC) towards the reactants because Q > KcD) towards the reactants because Q< Kc21. According to the Bronsted-Lowry acid base theory, a base is:A) anything that gives up OH- in solution.B) a proton donorC) a proton acceptorD) an electron pair acceptor

Answered: Image /qna-images/answer/d12b9550-5438-4a21-86b6-772481e4e7a2.jpg

Answered: 16. Identify the correct expression for…

16. Identify the correct expression for Kc for the reaction: H2 (g) + I2 (g) = 2 HI (g) A) K. [H2][l2] [HI]² B) K. = [HI]² ' [HI]? C) K. = %3D [H2][I2] [HI]2 D) K. = [H2] %3D

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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Question

16. Identify the correct expression for Kc for the reaction:
H2 (g) + I2 (g) = 2 HI (g)
[H2][l2]
[HI]2
А) К. —
B) K. = [HI]²
[HI]?
C) K. =
[HI]?
D) K =
[H2]
17. For the reaction A(g) +B (g) = C (g), vou know that Kc = 51.0 at a certain
temperature. What will happen to the value of Kc if you add more A to the
equilibrium mixture?
A) It will go up.
B) It will go down.
C) It will stay the same.
D) It is impossible to predict how Kc would change.
18. You study the equilibrium reaction 2 A (aq) = B (aq) + C (aq). You place a 1.0
M solution of A into an empty 1.0 L container. When you return later, you find
that the equilibrium concentration of B is 0.30 M. What is the value of Kc for this
reaction?
A) 0.4
B) 1.8
C) 0.30
D) 0.56

19. Oxygen (O2) and ozone (O3) form an equilibrium mixture according to the
reaction:
3 02 (g) = 2 O3 (g)
At equilibrium, you measure the partial pressure of the O2 to be 1.2 atm and the
partial pressure of O3 to be 0.44 atm, What is the value for Kp of this reaction?
A) 0.37
B) 2.7
C) 0.059
D) 0.11
20. Sulfur trioxide decomposes according to the reaction:
2 SO3 (g) = 2 SO2 (g) + O2 (g)
A 1.0 L flask is filled with 1.3 mol SO3, 1.0 mol SO2, and 0.20 mol O2 and allowed to
reach equilibrium. If the temperature is chosen so that Kc = 0.0050, how will the
reaction shift to reach equilibrium?
A) towards the products because Q > Kc
B) towards the products because Q< Kc
C) towards the reactants because Q > Kc
D) towards the reactants because Q< Kc
21. According to the Bronsted-Lowry acid base theory, a base is:
A) anything that gives up OH- in solution.
B) a proton donor
C) a proton acceptor
D) an electron pair acceptor

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