🔬 MCAT Exam Prep

A reaction has an activation energy of 100 kJ/mol. Adding a catalyst would:

A Increase the activation energy
B Lower the activation energy, increasing the rate
C Change the equilibrium position
D Increase the enthalpy of reaction

✓ Correct Answer: Option B

Catalysts lower activation energy by providing an alternative reaction pathway. They do not alter equilibrium position or overall ΔH.

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