WAEC Physics 2023 Objective — Question 5
Question 5 of 50 from the West African Examinations Council (WAEC) Physics 2023 Objective paper, with the correct answer and a full explanation.
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Which of the following statements about latent heat are correct? I. When ice melts, latent heat is absorbed II. When water freezes, latent heat is given off III. When water evaporates, latent heat is absorbed IV. When water vapour condenses, latent heat is absorbed
- A. I and IV only
- B. II and III only
- C. I, II and III onlyCorrect
- D. II, III and IV only
Explanation
Latent heat is absorbed when ice melts (I), given off when water freezes (II), and absorbed when water evaporates (III). Statement IV is incorrect since condensation releases (not absorbs) latent heat, so I, II and III only are correct.
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