Question

An ideal gas is allowed to expand both reversibly
and irreversibly in an isolated system. If Tf, is the
initial temperature and Tf is the final temperature,
which one of the following statements is correct?
(17(Tf)irrev> (Tf)rev
(2) Tf > Tgl for reversible process but Tf = Tf, for
irreversible process
(3) (Tf)irrev < (Tf) rev
(4) Tf = Tf for both reversible and irreversible
s processes​

Answer 1

Answer:

(1)

Explanation:

Comparing the work done in expansion reversibly is greater than work done in expansion irreversibly.So the internal energy of the system decreases more in the case of reversible process;thus its temperature falls i.e final temperature of the system which underwent reversible process is less than that of the system which underwent irreversible process.