Have I got this right?
The only factor that alters the equilibrium constant is temperature. For exothermic reactions, an increase in temperature results in lower Kc values. For endothermic reactions, an increase in temperature results in higher Kc values. An increase in temperature always results in an increase in the rate of reaction.
I was wondering if this applies to Kp as well? Does increasing pressure or the addition of a catalyst alter the value of Kp?