Which of the changes will form more CaCO3 (more moles CaCO3)?

Question

CO2 + Ca(OH)2=CaCO3 +H2O delta H =-113kJ
Write and explain if amount CaCO3 decrease, no change or increase with regards to the following situations:
a) Increase volume at constant temperature.
b)Increase partial pressure of CO2.
c.)Remove one half of the initial CaCO3.pls help