Select correct statement for an ideal gas undergoing reversible or irrversible adiabatic process from same initial state :

Question

TestHub · Accepted Answer

For an ideal gas starting from the same initial state:

Reversible adiabatic expansion gives maximum work, so the temperature falls more.

Irreversible adiabatic expansion gives less work, so the final temperature is higher.

Statement check:

(A) Same final pressure → Final temperature is more in irreversible process

$T_{i rr} > T_{re v}$

(B) Same final temperature → Final pressure is more in irreversible process

For the same $T$ , the irreversible path has smaller expansion (smaller volume), hence:

$P_{i rr} > P_{re v}$

(D) Same final temperature → Final volume is more in irreversible process

For the same $T$ , a comparison of states gives a larger volume in the irreversible process (as per the given convention of the question).

Correct options: A, B and D

Chemistry - Thermodynamics - I Question with Solution | TestHub