Essential Chemistry for IGCSE - Rate Of Reaction (Section 3 - No. 10)
What does a catalyst primarily do to affect the rate of a reaction?
Increases the concentration of the reactants.
Provides an alternative reaction pathway with a lower activation energy.
Increases the temperature of the reaction mixture.
Removes a reactant from the reaction mixture.
Explanation
A catalyst provides a different reaction pathway with lower activation energy.
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