WAEC Chemistry 2023 Objective — Question 45
Question 45 of 50 from the West African Examinations Council (WAEC) Chemistry 2023 Objective paper, with the correct answer and a full explanation.
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Which of the statements about gases is not correct?
- A. The total kinetic energy of the gas is not affected by collision
- B. Molecules of the gas are in constant motion
- C. Gases have low densities compared to solids and liquids of equal mass
- D. Gases are highly soluble in water at high temperaturesCorrect
Explanation
Unlike most solids, the solubility of most gases in water decreases as temperature increases (and vice versa) — so option D is the incorrect statement.
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