← Chemistry (4CH1)
Q1 / 5
Energetics
Higher
2 marks
Why does a catalyst lower the activation energy?
A
Provides alternative pathway with lower activation energy → more particles can react → faster; does not change ΔH
B
A catalyst supplies extra energy to the reactants
C
Catalysts increase activation energy to stop side reactions
D
Catalysts change the overall energy of the reaction (ΔH)
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