If both temperature and volume of gas are doubled, the pressure:
Correct answer: C. Remains unchanged
- A. Cannot be predicted
- B. Is reduced to 1/2
- C. Remains unchanged
- D. Is doubled
Explanation
Temp is directly proportionsl to pressure and pressure is inversely proportional to volume. So if temp increases pressure will be double and volume decreases pressure comes back to normal state.
This question appeared on the NUMS 2023 paper, which you can sit online with every answer explained.
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About Ideal Gas Equation
The ideal gas equation, PV = nRT, relates pressure, volume, amount and absolute temperature when gas particles are assumed to have negligible volume and no intermolecular forces. Applications include finding molar mass, density or an unknown gas variable, with careful use of Kelvin temperature and consistent units, and comparison with real-gas behaviour.
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