Post-UTME Physics 2011 Objective — Question 4
Question 4 of 10 from the Post-UTME Screening (Post-UTME) Physics 2011 Objective paper, with the correct answer and a full explanation.
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The pressure on the gas of a constant gas thermometer at the ice point is 325mm of mercury and at the steam point 875mm of mercury. Find the temperature when the pressure of the gas is 190mm mercury.
- A. 30K
- B. 243KCorrect
- C. 300K
- D. 303K
Explanation
Using the linear gas-pressure temperature relation between the ice and steam points, the corresponding temperature works out to 243K (-30°C).
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