When she introduced 0.0683 moles of SO3 gas into a 1.00L container, she found the equilibrium concentration of O2 gas to be 0.0152 M. What is the value of the equilibrium constant, K?

A student ran the following reaction in the laboratory at 1090 K:

2SO3(g) 2SO2(g) + O2(g)

When she introduced 0.0683 moles of SO3 gas into a 1.00L container, she found the equilibrium concentration of O2 gas to be 0.0152 M. What is the value of the equilibrium constant, K?



a. 0.00498
b. 0.00978
c. 0.0122
d. 0.0125
e. 0.0152


Answer: b. 0.00978


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