Statement 1: For the same initial state and the same final volume, an ideal gas does more work in reversible adiabatic expansion than in reversible isothermal expansion.
Statement 2: In adiabatic expansion the gas cools, so its pressure falls to a lower value than in the isothermal process.

Question

Statement 1: For the same initial state and the same final volume, an ideal gas does more work in reversible adiabatic expansion than in reversible isothermal expansion.

Statement 2: In adiabatic expansion the gas cools, so its pressure falls to a lower value than in the isothermal process.

TestHub · Accepted Answer

Adiabatic cooling gives P 2 ad <P 2 iso at the same V 2 (II correct); the adiabatic curve lies below the isotherm, so its area (work) is smaller. I is incorrect. Answer (d).

Chemistry - Thermodynamics - I Question with Solution | TestHub

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