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WAEC Chemistry 2015 Objective — Question 26

Question 26 of 50 from the West African Examinations Council (WAEC) Chemistry 2015 Objective paper, with the correct answer and a full explanation.

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When a reaction is endothermic, which of the following is correct? The heat content of the

  • A. reactant is less than the heat content of productCorrect
  • B. product is less than the heat content of reactant
  • C. reaction is unaffected by heat
  • D. reaction is always spontaneous

Explanation

An endothermic reaction absorbs heat from the surroundings to form the products, so the heat content of the reactants is less than that of the products.

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