WAEC Physics 2012 Objective — Question 18
Question 18 of 50 from the West African Examinations Council (WAEC) Physics 2012 Objective paper, with the correct answer and a full explanation.
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Which of the following statements about anomalous expansion of water are correct? I. There is contraction between 0°C and 4°C II. There is expansion between 0°C and 100°C III. The volume is minimum at 4°C IV. The volume is maximum at 4°C
- A. A. I and II only
- B. B. II and III only
- C. C. I and III onlyCorrect
- D. D. II and III only
Explanation
Water contracts between 0°C and 4°C (anomalous expansion) and its volume is minimum (density maximum) at 4°C, so statements I and III are correct.
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