reactionvesselABCcompoundHCNNH₂CNNH4HCNNH3CNNH4HCNNH₂CNNH4concentration0.91 M0.80 M0.73 M0.98 M1.12 M1.03 M0.21 M0.41 M0.74 M0.65 M0.59 M0.79 Mexpected change in concentration↑ increase↑ increase↑ increase↑ increase↑ increase↑ increase↑ increase↑ increase↑ increase↑ increase↑ increase↑ increase↓ decrease↓ decrease↓decrease↓ decrease↓ decrease↓decrease↓decrease↓decrease↓decrease↓ decrease↓ decrease↓ decreaseX(no change)(no change)(no change)(no change)(no change)(no change)(no change)(no change)(no change)(no change)(no change)(no change)Ś 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 0.98.The engineer charges ("fills") four reaction vessels with hydrogen cyanide and ammonia, and lets the reaction begin. She then measures the composition of themixture 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.

Answered: Image /qna-images/answer/2288d20f-2684-4c24-896e-ea45e161ccb3.jpg

reaction vessel A B с compound HCN NH3 CN NH4 HCN NH3 CN NH4 HCN NH3 CN NHA concentration 0.91 M 0.80 M 0.73 M 0.98 M 1.12 M 1.03 M 0.21 M 0.41 M 0.74 M 0.65 M 0.59 M 0.79 M expected change in concentration ↑ increase ↑ increase ↑ increase ↑ increase ↑ increase ↑ increase ↑ increase ↑ increase ↑ increase ↑ increase ↑ increase ↑ increase ↓ decrease ↓ decrease ↓ decrease ↓decrease ↓ decrease ↓ decrease ↓ decrease ↓ decrease ↓ decrease decrease decrease ↓ decrease X (no change) (no change) (no change) (no change) (no change) (no change) (no change) (no change) (no change) (no change) (no change) (no change) Ś

reaction vessel A B с compound HCN NH3 CN NH4 HCN NH3 CN NH4 HCN NH3 CN NHA concentration 0.91 M 0.80 M 0.73 M 0.98 M 1.12 M 1.03 M 0.21 M 0.41 M 0.74 M 0.65 M 0.59 M 0.79 M expected change in concentration ↑ increase ↑ increase ↑ increase ↑ increase ↑ increase ↑ increase ↑ increase ↑ increase ↑ increase ↑ increase ↑ increase ↑ increase ↓ decrease ↓ decrease ↓ decrease ↓decrease ↓ decrease ↓ decrease ↓ decrease ↓ decrease ↓ decrease decrease decrease ↓ decrease X (no change) (no change) (no change) (no change) (no change) (no change) (no change) (no change) (no change) (no change) (no change) (no change) Ś

Chemistry for Engineering Students

4th Edition

ISBN:9781337398909

Author:Lawrence S. Brown, Tom Holme

Publisher:Lawrence S. Brown, Tom Holme

Chapter12: Chemical Equilibrium

Section: Chapter Questions

Problem 12.79PAE

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