Five moles of an ideal gas at $1 \ bar$ and $298 \ K$ is expanded into vacuum to double the volume. The work done is :-

  • A
    $C_V(T_2 - T_1)$
  • B
    $-RT \ln(V_2 / V_1)$
  • C
    $-RT(V_2 - V_1)$
  • D
    zero

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