The product of PV of a gas has unit of:
Correct answer: C. Work
- A. Force
- B. Entropy
- C. Work
- D. Enthalpy
Explanation
The product of pressure and volume (PV) of a gas represents work, which is measured in joules (J). When a gas changes volume under constant pressure, it performs work on its surroundings, calculated as W = P * ΔV, where P is pressure and ΔV is the change in volume. This matches the unit of work. Other options such as force, entropy, and enthalpy involve different physical concepts and units, making them incorrect choices for this question.
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About Gases
Gas behaviour is explained through the kinetic molecular theory and the relationships among pressure, volume and temperature. Work includes STP, Boyle's and Charles's laws, absolute zero, the ideal gas equation, and the distinction between ideal and real gases, especially the effects of intermolecular forces and molecular volume.
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