In the preparation of oxygen by heating KClO3 in the presence of MnO2, only moderate heat is needed because the catalyst acts by?
- lowering the pressure of the reaction
- increasing the surface area of the reactant
-
increase the rate of the reaction
- lowering the energy barrier of the reaction
The correct answer is: C
Explanation
- The presence of MnO2 increase the rate of the reaction by providing a new reaction path / making more particles possess kinetic energy greater then the activation energy.
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