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 0.70. The engineer charges ("fills") four reaction vessels with hydrogen cyanide and ammonia, 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 compound concentration expected change in concentration HCN 0.59 M ↑ increase O↓ decrease NH₂ 0.73 M O ↑ increase O decrease A CN 0.56 M O ↑ increase O decrease NH₁ 0.54 M O ↑ increase O decrease HCN 0.21 M O ↑ increase O decrease ↓ NH₂ 0.35 M O † increase O decrease CN 0.94 M † increase ↑ O decrease O Ot increase NHA 0.92 M O decrease HCN 0.32 M O ↑ increase O decrease NH3 0.46 M O † increase O decrease B 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: HCN(aq) + NH3(aq) → CN (aq)+NH(aq) At the temperature the engineer picks, the equilibrium constant K for this reaction is 0.70. The engineer charges ("fills") four reaction vessels with hydrogen cyanide and ammonia, 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 compound concentration expected change in concentration HCN 0.59 M ↑ increase O↓ decrease NH₂ 0.73 M O ↑ increase O decrease A CN 0.56 M O ↑ increase O decrease NH₁ 0.54 M O ↑ increase O decrease HCN 0.21 M O ↑ increase O decrease ↓ NH₂ 0.35 M O † increase O decrease CN 0.94 M † increase ↑ O decrease O Ot increase NHA 0.92 M O decrease HCN 0.32 M O ↑ increase O decrease NH3 0.46 M O † increase O decrease B 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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