12. At 500 K, 2 mol of N, mol of NH, are put into a two liter closed containen At this temperature K, for the reaction, N, (g) + 3H, (g) 2 2NH, (g) + 22 kcal, is 0.2. Which of the following is true about this system? A) The reaction is at cquilibrium. B) The total pressure of the gases increases while the reaction reaches equilibrium. C) The mole number of NH, at equilibrium is great- er than 0,8 D) As the temperature of the system increases, the value of K, increases too. E) The reaction continues until all N, is used up.

12. At 500 K, 2 mol of N, mol of NH, are put into a two liter closed containen At this temperature K, for the reaction, N, (g) + 3H, (g) 2 2NH, (g) + 22 kcal, is 0.2. Which of the following is true about this system? A) The reaction is at cquilibrium. B) The total pressure of the gases increases while the reaction reaches equilibrium. C) The mole number of NH, at equilibrium is great- er than 0,8 D) As the temperature of the system increases, the value of K, increases too. E) The reaction continues until all N, is used up.

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

100%

12. At 500 K, 2 mol of N,, 4 mol of H2, and 0.8
mol of NH, are put into a two liter closed container.
At this temperature K, for the reaction,
N, (g) + 3H, (g) 2NH, (g) + 22 kcal, is 0,2.
Which of the following is true about this system?
A) The reaction is at cquilibrium.
B) The total pressure of the gases increases while the
reaction reaches equilibrium.
C) The mole number of NH, at equilibrium is great-
er than 0.8
D) As the temperature of the system increases, the
value of K. increases too.
E) The reaction continues until all N, is used up.

13. For the reaction,
250, (g) + 02 (g) 2- 250, (g), K. = 9 x 102
at 800 K, and K. = 1 x 10 at 635 K. Which of the
following is wrong about this reaction?
A) It is an exothermic reaction.
B) At 800 K, SO, molecules are more stable than
%3D
%3D
those at 635 K,
C) The heat content of SO, molecules is less than
that of SO, molecules.
D) K, is smaller than Ke at 800 K.
E) The rátio of specific rate constant for forward re-
action to that of the reverse reaction at 635 K is
1x10.

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