A chemical engineer is studying the following reaction: 2 NO(g)+2H2(g) → N,(9)+2H,0(g) At the temperature the engineer picks, the equilibrium constant K, for this reaction is 0.17. The engineer charges ("fills") four reaction vessels with nitrogen monoxide and hydrogen, 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 pressure expected change in pressure NO 3.80 atm f increase CI decrease (no change) H2 5.43 atm f increase I decrease (no change) А N2 7.72 atm f increase I decrease (no change) H,0 3.07 atm f increase C+ decrease (no change) NO 4.19 atm f increase I decrease (no change) H, 5.64 atm f increase I decrease (no change) В N2 6.22 atm f increase I decrease (no change) H,0 1.83 atm f increase I decrease (no change) NO 3.39 atm f increase I decrease (no change) H2 4.84 atm f increase I decrease (no change) N2 6.62 atm f increase I decrease (no change) H,0 2.63 atm C T increase CI decrease O (no change) B.

A chemical engineer is studying the following reaction: 2 NO(g)+2H2(g) → N,(9)+2H,0(g) At the temperature the engineer picks, the equilibrium constant K, for this reaction is 0.17. The engineer charges ("fills") four reaction vessels with nitrogen monoxide and hydrogen, 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 pressure expected change in pressure NO 3.80 atm f increase CI decrease (no change) H2 5.43 atm f increase I decrease (no change) А N2 7.72 atm f increase I decrease (no change) H,0 3.07 atm f increase C+ decrease (no change) NO 4.19 atm f increase I decrease (no change) H, 5.64 atm f increase I decrease (no change) В N2 6.22 atm f increase I decrease (no change) H,0 1.83 atm f increase I decrease (no change) NO 3.39 atm f increase I decrease (no change) H2 4.84 atm f increase I decrease (no change) N2 6.62 atm f increase I decrease (no change) H,0 2.63 atm C T increase CI decrease O (no change) B.

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 12.41PAE: Because calcium carbonate is a sink for CO32- in a lake, the student in Exercise 12.39 decides to go...

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At 2300 K the equilibrium constant for the formation of NO(g) is 1.7 103. N2(g) + O2(g) 2 NO(g) (a) Analysis shows that the concentrations of N2 and O2 are both 0.25 M, and that of NO is 0.0042 M under certain conditions. Is the system at equilibrium? (b) If the system is not at equilibrium, in which direction does the reaction proceed? (c) When the system is at equilibrium, what are the equilibrium concentrations?
Describe a nonchemical system that is in equilibrium, and explain how the principles of equilibrium apply to the system.
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