WAEC Physics 2017 Objective — Question 19
Question 19 of 50 from the West African Examinations Council (WAEC) Physics 2017 Objective paper, with the correct answer and a full explanation.
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The pressure P, volume V and absolute temperature T of a given mass of an ideal gas change simultaneously. Which of the following equations is correct about the gas?
- A. A. PV = constant/T
- B. B. P/T = constant
- C. C. P/T x 1/T = constant
- D. D. T/(PV) = constantCorrect
Explanation
If we divide through by PV, we obtain 1/T = constant/PV, which rearranges to give T/(PV) = constant.
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