A chemical engineer is studying the following reaction: CH4(9)+2H₂S(g) → CS₂(g) + 4H₂(g) At the temperature the engineer picks, the equilibrium constant K, for this reaction is 1.9 × 10². The engineer charges ("fills") four reaction vessels with methane and hydrogen sulfide, and lets the reaction begin. She then measures the composition of the mixture inside each vessel from time to time. Her first set of measurements are shown in the table below. Predict the changes in the compositions the engineer should expect next time she measures the compositions. reaction vessel A B с compound CHA H₂S CS₂ H₂ CH₂ H₂S CS₂ H₂ CH4 H₂S CS₂ H₂ pressure 7.83 atm. 1.22 atm 3.61 atm 7.65 atm 8.15 atm 1.87 atm 3.29 atm 6.36 atm 8.47 atm 2.52 atm 2.97 atm 5.07 atm expected change in pressure Ot increase Ot increase Ot increase O 1 increase Ot increase ↑ Ot increase O † increase Ot increase Ot increase Ot increase Ot increase 1 increase O decrease ↓ O decrease O decrease O decrease O decrease ↓ O decrease O decrease O decrease O decrease O decrease O↓ decrease O↓ decrease O (no change) O (no change) O (no change) O (no change) O (no change) O (no change) O (no change) O (no change) O (no change) O (no change) O (no change) O (no change)
A chemical engineer is studying the following reaction: CH4(9)+2H₂S(g) → CS₂(g) + 4H₂(g) At the temperature the engineer picks, the equilibrium constant K, for this reaction is 1.9 × 10². The engineer charges ("fills") four reaction vessels with methane and hydrogen sulfide, and lets the reaction begin. She then measures the composition of the mixture inside each vessel from time to time. Her first set of measurements are shown in the table below. Predict the changes in the compositions the engineer should expect next time she measures the compositions. reaction vessel A B с compound CHA H₂S CS₂ H₂ CH₂ H₂S CS₂ H₂ CH4 H₂S CS₂ H₂ pressure 7.83 atm. 1.22 atm 3.61 atm 7.65 atm 8.15 atm 1.87 atm 3.29 atm 6.36 atm 8.47 atm 2.52 atm 2.97 atm 5.07 atm expected change in pressure Ot increase Ot increase Ot increase O 1 increase Ot increase ↑ Ot increase O † increase Ot increase Ot increase Ot increase Ot increase 1 increase O decrease ↓ O decrease O decrease O decrease O decrease ↓ O decrease O decrease O decrease O decrease O decrease O↓ decrease O↓ decrease O (no change) O (no change) O (no change) O (no change) O (no change) O (no change) O (no change) O (no change) O (no change) O (no change) O (no change) O (no change)
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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Transcribed Image Text:Using an equilibrium constant to predict the direction of spontaneous...
A chemical engineer is studying the following reaction:
CH₂(g)+2H₂S(g) → CS₂(g)+4H₂(g)
At the temperature the engineer picks, the equilibrium constant K for this reaction is 1.9 × 10².
The engineer charges ("fills") four reaction vessels with methane and hydrogen sulfide, and lets the reaction begin. She then measures the composition of the
mixture inside each vessel from time to time. Her first set of measurements are shown in the table below.
Predict the changes in the compositions the engineer should expect next time she measures the compositions.
reaction
vessel
A
B
U
compound
CHA
4
H₂S
CS2
H₂
CHA
H₂S
CS₂
H₂
CH_
H₂S
CS₂
H₂
pressure
7.83 atm
1.22 atm
3.61 atm
7.65 atm
8.15 atm
1.87 atm
3.29 atm
6.36 atm
8.47 atm
2.52 atm
2.97 atm
5.07 atm
expected change in pressure
increase
↑ increase
↑ increase
↑ increase
increase
↑ increase O decrease
increase
↑ increase
increase
↑ increase
↑ increase
decrease
↑ increase
↓ decrease
decrease
↓ decrease
↓ decrease
decrease
decrease
↓ decrease
decrease
O decrease
decrease
(no change)
(no change)
(no change)
(no change)
(no change)
(no change)
(no change)
(no change)
(no change)
(no change)
(no change)
(no change)
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