Q. An ideal gas is allowed to expand both reversibly and irreversibly in an isolated system. If $T_{i}$ is the initial temperature and $T_{f}$ is the final temperature, which of the following statements is correct?
A) $\left( T_{f} \right)_{irrev} > \left( T_{f} \right)_{rev}$
B) $T_{f} > T_{i}$ for reversible process but $T_{f} = T_{i}$ for irreversible process
C) $\left( T_{f} \right)_{rev} = \left( T_{f} \right)_{irrev}$
D) $T_{f} = T_{i}$ for both reversible and irreversible processes
Explanation
(a)
$\left( T_{f} \right)_{irrev} > \left( T_{f} \right)_{rev}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.