At High Temperatures, Carbon Reacts with O₂ to Produce CO

question 74

Multiple Choice

At high temperatures, carbon reacts with O₂ to produce CO as follows: C(s) + O₂(g) 2CO(g) .
When 0.350 mol of O₂ and excess carbon were placed in a 5.00-L container and heated, the equilibrium concentration of CO was found to be 0.060 M. What is the equilibrium constant, K_c, for this reaction?

• A) 0.010
• B) 0.072
• C) 0.090
• D) 0.17
• E) 1.2

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