Which of the following will increase the volume of a real gas by four times ?
Correct answer: B. Reducing pressure to one fourth at constant temperature
- A. Doubling the absolute temperature as well as pressure of the gas
- B. Reducing pressure to one fourth at constant temperature
- C. Reducing temperature to one fourth at constant pressure
- D. Reducing the temperature to half and doubling the pressure
Explanation
For a gas at constant temperature, V is inversely proportional to pressure, so reducing pressure to one-fourth makes the volume four times larger. Doubling both temperature and pressure leaves V unchanged, which makes option a a common trap.
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