How should the condition be changed to prevent the volume of a given gas from expanding when its mass is increased?
Correct answer: A. Temperature is lowered & pressure is increased
- A. Temperature is lowered & pressure is increased
- B. Temperature is increased & pressure is lowered
- C. Temperature & pressure both are lowered
- D. Temperature & pressure both are increased
Explanation
To prevent the volume of a given gas from expanding when its mass is increased, you should lower the temperature and increase the pressure (option a). This combination of conditions counteracts the expansion and keeps the volume relatively constant.
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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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How will the conditions be changed to prevent the volume of the given gas from expanding when its mass is increased?