The new volume when pressure is halved while temperature and number of moles are doubled will be:
Correct answer: D. Octupled
- A. Doubled
- B. Quadrupled
- C. Sextupled
- D. Octupled
Explanation
From PV equal to nRT, volume is proportional to nT divided by P. Doubling n and T multiplies the volume by 4, and halving the pressure doubles it again, so the volume becomes 8 times larger, which is octupled.
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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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