One mole of an ideal gas at an initial temperature of $T \ K$ does $6R \ J$ 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 the gas will be:

  • A
    $(T + 2.4) \ K$
  • B
    $(T - 2.4) \ K$
  • C
    $(T + 4) \ K$
  • D
    $(T - 4) \ K$

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