At high temperatures, a dynamic equilibrium exists between carbon monoxide, carbon dioxide, and solid carbon.

At 850oC, Kc is 0.153.
a. What is the value of Kp?
b. If the original reaction system consisted of just carbon and 1.50 atm of CO2, what are the pressures of CO2 and CO when equilibrium has been established?
c. How will the equilibrium pressure of CO change if the temperature is decreased?

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C(s) + CO2(g) 2CO(g); ΔΗ' = 172.5 kJ