How many of the following changes would alter the numerical value of the equilibrium constant Kp for the reaction 2OF2(g) ⇀ ↽ O2(g) + 2F2(g)?

Question

I) an increase in temperature
II) a decrease of the container volume III) adding more O2 at constant volume IV) adding a catalyst

Answer 1

Several things can change the equilibrium (shift to left or right) but only change in T can change the numberical value of Kp or Kc.