One mole of an ideal gas at an initial t...

One mole of an ideal gas at an initial temperature of T K does 6 R joules of work adiabatically. If the ratio of specific heats of this gas at constant pressure and at constant volume is `5/3` , the final temperature of gas will be :-

`(T + 2.4) K`

`(T -2.4) K`

`(T + 4) K `

`(T-4)K`

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