WAEC Chemistry 2011 Objective — Question 25
Question 25 of 50 from the West African Examinations Council (WAEC) Chemistry 2011 Objective paper, with the correct answer and a full explanation.
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The initial volume of a gas at 300 K was 220cm³. Determine its temperature if the volume became 250cm³.
- A. A. 183 K
- B. B. 264 K
- C. C. 300 K
- D. D. 341 KCorrect
Explanation
Using Charles' law, V1/T1 = V2/T2: 220/300 = 250/T2, so T2 = 300 x 250/220 = 340.91 K ≈ 341 K.
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