At a certain temperature, Kc = 0.18 for the following reaction:PCl3 (g) + Cl2 (g) PCl5 (g)Suppose a reaction vessel at this temperature contained these three gases at the following concentrations:[PCl3] = 0.420 M, [Cl2] = 0.240 M, [PCl5] = 0.00500 M:(10a): Is the system in a state of equilibrium? Justify your answer with a calculation.(10b): If the system is not in equilibrium, which direction will the reaction proceed to reach equilibrium?
At a certain temperature, Kc = 0.18 for the following reaction:PCl3 (g) + Cl2 (g) PCl5 (g)Suppose a reaction vessel at this temperature contained these three gases at the following concentrations:[PCl3] = 0.420 M, [Cl2] = 0.240 M, [PCl5] = 0.00500 M:(10a): Is the system in a state of equilibrium? Justify your answer with a calculation.(10b): If the system is not in equilibrium, which direction will the reaction proceed to reach equilibrium?
Introduction to General, Organic and Biochemistry
11th Edition
ISBN:9781285869759
Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres
Publisher:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres
Chapter7: Reaction Rates And Chemical Equilibrium
Section: Chapter Questions
Problem 7.81P
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Question
At a certain temperature, Kc = 0.18 for the following reaction:
PCl3 (g) + Cl2 (g) PCl5 (g)
Suppose a reaction vessel at this temperature contained these three gases at the following concentrations:
[PCl3] = 0.420 M, [Cl2] = 0.240 M, [PCl5] = 0.00500 M:
(10a): Is the system in a state of equilibrium? Justify your answer with a calculation.
(10b): If the system is not in equilibrium, which direction will the reaction proceed to reach equilibrium?
Expert Solution
Step 1
10 a) Given
- [PCl3] = 0.420 M
- [Cl2] = 0.240 M
- [PCl5] = 0.00500 M
- KC = 0.18 M
The balanced chemical reaction is -
PCl3 (g) + Cl2 (g) PCl5 (g)
The equilibrium constant expression is given by -
Q = 0.049
As the value of Q KC , the given reaction is not at equilibrium.
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