What effect does a catalyst have on a system in equilibrium?

Question

The system is unaffected.

The reverse reaction is favored.

The forward reaction is favored.

The forward reaction slows down, and the reverse reaction speeds up.

Answer 1

A catalyst does not affect the position of equilibrium in a system. It speeds up both the forward and reverse reactions equally, allowing the system to reach equilibrium faster but not changing the equilibrium concentrations of reactants and products.