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EquilibriumMCQ

CaCO3(s) ⇄ CaO(s) + CO2(g) ΔH° = 178 kJ/molrxn The reaction system represented above is at equilibriEquilibrium Chemistry Question

Question

CaCO3(s) ⇄ CaO(s) + CO2(g) ΔH° = 178 kJ/molrxn

The reaction system represented above is at equilibrium. Which of the following will decrease the amount of CaO(s) in the system?

A.

Increasing the volume of the reaction vessel at constant temperature

B.

Lowering the temperature of the system

✓ Correct
C.

Removing some CO2(g) at constant temperature

D.

Removing some CaCO3(s) at constant temperature

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