How does catalyst increase the rate of reaction?
Correct answer: D. By lowering activation energy
- A. Increasing surface area
- B. By increasing effective collisions
- C. Increasing activation energy barrier
- D. By lowering activation energy
Explanation
The minimum energy required to initiate a chemical reaction is called activation energy. A catalyst increases the rate of a reaction by lowering the activation energy.
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About Reaction Kinetics
Reaction kinetics relates reaction rate to concentration, temperature, surface area and catalysts. Questions cover rate laws, reaction order, rate constants, activation energy and the activated complex, including how a catalyst lowers the activation energy without changing the overall energy change or equilibrium position.
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