At 900 degrees C, Kp = 1.04 for the reaction CaCO3 (s) --><-- CaO (s) + CO2 (g). At a low temperature, dry ice (solid CO2), calcium oxide, and calcium carbonate are introduced into a 50 L reaction chamber. The temperature is raised to 900 degrees C, resulting in the dry ice converting to gaseous CO2. For the following mixture, will the initial amount of calcium oxide increase, decrease, or remain the same as the system moves toward equilibrium at 900 degrees C