WAEC Chemistry 2011 Theory — Question 5

Question 5 of 31 from the West African Examinations Council (WAEC) Chemistry 2011 Theory paper, with the correct answer and a full explanation.

1(c)(i) Define each of the following terms: I. Activation energy; II. Exothermic reaction.

Model answer

I. Activation energy is the minimum energy required for a chemical reaction to occur. II. An exothermic reaction is one during which heat is released to the surrounding.

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