A 3.00 L container at 25 C contains 0.464 atm of CO2. When graphite is added to the container, some CO2 is converted to CO and at equilibrium the total pressure is 0.746 atm.
CO2(g) + C(s) <==> 2CO(g)
a) Compute Kp for the reaction
b) What is the minimum mass of C(s) needed to reach equilibrium?