Exercise 1 | Chemical Equilibrium

Write the equilibrium constant expressions for KC and KP of the following reaction and their relationship:


1) PCl3(g) + Cl2(g)  PCl5(g)

2) C(s) + CO2(g)  2 CO(g)

3) CaO(s) + CO2(g)  CaCO3(s)

1) KC = PCl5PCl3Cl2

KP = PPCl5PPCl3 × PCl2

KP = KCRT


2) KC = CO2CO2

KP = PCO2PCO2

KP = KC RT


3) KC = [CO2]

KP = PCO2

KP = KC RT