engineering chemistry MCQ #4935

A catalyst increases the rate of reaction by

engineering chemistry MCQ #4935

  1. Question 1

    Q1. A catalyst increases the rate of reaction by

    • A) increasing the activation energy
    • B) decreasing the activation energy
    • C) changing the equilibrium constant
    • D) increasing the frequency factor

    Answer: decreasing the activation energy

    Explanation: A catalyst works by lowering the activation energy (Ea) required for the reaction, thus speeding up the reaction rate.