WAEC Chemistry 2013 Objective — Question 27
Question 27 of 50 from the West African Examinations Council (WAEC) Chemistry 2013 Objective paper, with the correct answer and a full explanation.
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When heat is absorbed during a chemical reaction, the reaction is said to be
- A. adiabatic
- B. endothermicCorrect
- C. exothermic
- D. isothermal
Explanation
An endothermic reaction is one during which heat is absorbed from the surrounding. The enthalpy change for an endothermic reaction is positive. The opposite applies for an exothermic reaction.
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