Physics · Thermodynamics
'n' moles of an ideal gas undergo a cyclic process ABCA consisting of the following sequential steps: A → B: Isothermal expansion at temperature T so that the volume is doubled from V1 to V2 = 2V1 and pressure changes from P1 to P2. B → C: Isobaric compression at pressure P2 back to the initial volume V1. C → A: Isochoric process leading to a change of pressure from P2 back to P1. The total work done by the gas in the complete cycle ABCA is:
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- 1nRT 2 ln 2 - 12✓
- 2nRT ln 2 + 12
- 3nRT ln 2
- 40
Correct answer
nRT 2 ln 2 - 12
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