Catalysts are an important part of many industrial processes and biochemical reactions. Which row gives the correct description of the effect of a catalyst on a reversible chemical reaction?
- Aposition of equilibrium moved to right; effect on value of $\Delta H$ decreased
- Bposition of equilibrium unaffected; effect on value of $\Delta H$ decreased
- Cposition of equilibrium unaffected; effect on value of $\Delta H$ increased
- Dposition of equilibrium unaffected; effect on value of $\Delta H$ unaffected