Statement 1: When an ideal gas expands adiabatically from the same initial state against a constant external pressure, its final temperature is higher than in reversible adiabatic expansion.
Statement 2: A reversible process takes infinite time to complete.

Question

Statement 1: When an ideal gas expands adiabatically from the same initial state against a constant external pressure, its final temperature is higher than in reversible adiabatic expansion.

Statement 2: A reversible process takes infinite time to complete.

TestHub · Accepted Answer

Reversible adiabatic expansion does maximum work, so it gives the largest fall in T; the irreversible one ends warmer: I correct. II is a true property of reversible processes, but it does not account for the difference in work and temperature. Answer (b).

Chemistry - Thermodynamics - I Question with Solution | TestHub

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