Consider a reaction which of the following expression are correct?
A.
At 298 K, the pressure for the decomposion of 1 kg CaCO3(s) or 10 kg CaCO3(s) are same.
B.
There are 2 phases in the equilibrium.
C.
At constant temperature, the degree of dissociaton of CaCO3(s) only has the relation with the pressure of CO2(g).
D.
Chemical potential of CaCO3(s) is insensitive to the pressure change.