Question

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) (T_f) irrev > (T_f )rev
(b) T_f > T_i for reversible process but T_f = T_i for irreversible process
(c) (T_f )rev = (T_f )irrev
(d) T_f = T_i for both reversible and irreversible processes.

Answer 1

Correct option(a) (T_f) irrev > (T_f )rev

Explanation:

ln an ideal gas, there are no intermolecular forces of attraction.

Hence, T_f = T_i for both reversible and irreversible processes.