Predict what would happen to the position of equilibrium and the value of (Kc) if the pressure is increased from 1 atm to 2 atm.

a) The equilibrium shifts left; (Kc) decreases.
b) The equilibrium shifts right; (Kc) increases.
c) The equilibrium shifts left; (Kc) increases.
d) The equilibrium shifts right; (Kc) decreases.