atom. 37. An ideal gas is allowed to expand both reversibly and irreversibly in an isolated system. If T, is the initial temperature and T, is the final temperature, which of the following statements is correct? 1) (Tr),ex = (T; Doppey 2) T, = T; for both reversible and irreversible processes 3) (T; Dimen > (T; )rev 4) T, >T; for reversible process but T, = T, for irreversible process. Tev irrey V rev