Two energy profiles for the same reaction are shown: with and without a catalyst.
What is the effect of a catalyst on the reaction?
- A
Raises Ea, slows rate
- B
Changes ΔH, shifts equilibrium
- C
Lowers Ea but does not change rate
- Dcheck_circle
Lowers Ea, increases rate
Explanation
A catalyst provides an alternate pathway with a lower Ea, increasing rate without changing ΔH.