Question

An equilibrium mixture of CO, O2 and CO2 at a certain temperature contains 0.0010 M CO2 and 0.0100 M O2. At this temperature, Kc equals 1.4 102 for the reaction:
2 CO(g) + O2(g) 2 CO2(g).
What is the equilibrium concentration of CO?
A) 7.1 10-7 M
B) 8.4 10-4 M
C) 1.4 10-2 M
D) 1.2 10-1 M

Answer

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