A gas expands from V₁ to V₂. The amount of work done is greatest in:
Correct answer: B. Isobaric
- A. Adiabatic
- B. Isobaric
- C. Isochoric
- D. Isothermal
Explanation
For given expansion from V₁ to V₂, the work done is the area under the P-V curve. An isobaric process occurs at constant pressure, resulting in a rectangular area. Isothermal and adiabatic curves both slope downwards, covering less area than the isobaric process for the same volume change.
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About Work
Work is done when a force produces displacement, with its value determined by the component of force along the displacement. The topic covers positive, negative and zero work, work by variable forces from force-displacement graphs, and the connection between net work and change in kinetic energy.
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