A chemical engineer is studying the following reaction: HCN(aq)+NH3(aq) → CN (aq)+NH(aq) At the temperature the engineer picks, the equilibrium constant K for this reaction is 1.0. The engineer charges ("fills") four reaction vessels with hydrogen cyanide and ammonia, and lets the reaction begin. He then measures the compositi mixture inside each vessel from time to time. His first set of measurements are shown in the table below. Predict the changes in the compositions the engineer should expect next time he measures the compositions. reaction vessel compound concentration expected change in concentration HCN 0.06 M Ot increase O I decrease (no change) NH, 0.22 M O t increase O I decrease O (no change) A CN 0.97 M O t increase O I decrease O (no change) NH, 1.23 M O f increase O I decrease (no change) HCN 0.53 M O t increase O I decrease O (no change) NH, 0.69 M O t increase O I decrease (no change) B CN 0.50 M O t increase O I decrease (no change) NH, 0.76 M O f increase O I decrease O (no change) HCN 0.74 M O t increase O I decrease O (no change) NH, 0.96 M O t increase O I decrease O (no change) CN 0.70 M O t increase O I decrease O (no change) NH, 1.06 M O t increase O I decrease O (no change)
A chemical engineer is studying the following reaction: HCN(aq)+NH3(aq) → CN (aq)+NH(aq) At the temperature the engineer picks, the equilibrium constant K for this reaction is 1.0. The engineer charges ("fills") four reaction vessels with hydrogen cyanide and ammonia, and lets the reaction begin. He then measures the compositi mixture inside each vessel from time to time. His first set of measurements are shown in the table below. Predict the changes in the compositions the engineer should expect next time he measures the compositions. reaction vessel compound concentration expected change in concentration HCN 0.06 M Ot increase O I decrease (no change) NH, 0.22 M O t increase O I decrease O (no change) A CN 0.97 M O t increase O I decrease O (no change) NH, 1.23 M O f increase O I decrease (no change) HCN 0.53 M O t increase O I decrease O (no change) NH, 0.69 M O t increase O I decrease (no change) B CN 0.50 M O t increase O I decrease (no change) NH, 0.76 M O f increase O I decrease O (no change) HCN 0.74 M O t increase O I decrease O (no change) NH, 0.96 M O t increase O I decrease O (no change) CN 0.70 M O t increase O I decrease O (no change) NH, 1.06 M O t increase O I decrease O (no change)
Chemistry for Engineering Students
4th Edition
ISBN:9781337398909
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Chapter12: Chemical Equilibrium
Section: Chapter Questions
Problem 12.40PAE: Because carbonic acid undergoes a second ionization, the student in Exercise 12.39 is concerned that...
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Question
![A chemical engineer is studying the following reaction:
HCN(aq)+NH,(aq) → CN (aq)+NH(aq)
At the temperature the engineer picks, the equilibrium constant K, for this reaction is 1.0.
The engineer charges ("fills") four reaction vessels with hydrogen cyanide and ammonia, and lets the reaction begin. He then measures the composition of the
mixture inside each vessel from time to time. His first set of measurements are shown in the table below.
Predict the changes in the compositions the engineer should expect next time he measures the compositions.
reaction
compound
concentration
expected change in concentration
vessel
HCN
0.06 M
O f increase
OI decrease
O (no change)
NH,
0.22 M
f increase
OI decrease
(no change)
A
CN
0.97 M
increase
I decrease
(no change)
NH,
1.23 M
f increase
OI decrease
O (no change)
HCN
0.53 M
f increase
OI decrease
(no change)
NH,
0.69 M
f increase
O I decrease
(no change)
В
CN
0.50 M
t increase
OI decrease
O (no change)
NH,
0.76 M
f increase
Ot decrease
(no change)
HCN
0.74 M
O f increase
OI decrease
O (no change)
NH,
0.96 M
increase
I decrease
(no change)
CN
0.70 M
f increase
O I decrease
(no change)
NH4
1.06 M
f increase
OI decrease
(no change)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fd721da83-b4b0-4147-870c-79c150dacba8%2F8fc75541-7450-40e0-b76c-71f85ac6d2e5%2Fmxu0k7l_processed.png&w=3840&q=75)
Transcribed Image Text:A chemical engineer is studying the following reaction:
HCN(aq)+NH,(aq) → CN (aq)+NH(aq)
At the temperature the engineer picks, the equilibrium constant K, for this reaction is 1.0.
The engineer charges ("fills") four reaction vessels with hydrogen cyanide and ammonia, and lets the reaction begin. He then measures the composition of the
mixture inside each vessel from time to time. His first set of measurements are shown in the table below.
Predict the changes in the compositions the engineer should expect next time he measures the compositions.
reaction
compound
concentration
expected change in concentration
vessel
HCN
0.06 M
O f increase
OI decrease
O (no change)
NH,
0.22 M
f increase
OI decrease
(no change)
A
CN
0.97 M
increase
I decrease
(no change)
NH,
1.23 M
f increase
OI decrease
O (no change)
HCN
0.53 M
f increase
OI decrease
(no change)
NH,
0.69 M
f increase
O I decrease
(no change)
В
CN
0.50 M
t increase
OI decrease
O (no change)
NH,
0.76 M
f increase
Ot decrease
(no change)
HCN
0.74 M
O f increase
OI decrease
O (no change)
NH,
0.96 M
increase
I decrease
(no change)
CN
0.70 M
f increase
O I decrease
(no change)
NH4
1.06 M
f increase
OI decrease
(no change)
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