Essential Chemistry for IGCSE - Rate Of Reaction (Section 3 - No. 22)
How does a catalyst work?
By increasing the temperature of the reaction.
By providing an alternate reaction pathway with lower activation energy.
By increasing the concentration of the reactants.
By absorbing the products of the reaction.
Explanation
A catalyst provides an alternative pathway for the reaction to occur, which lowers the activation energy required for the reaction to proceed.
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