For free expansion of the gas which of the following is true
  • A$Q = W = 0$ and $\Delta \,{E_{{\mathop{\rm int}} }} = 0$
  • B$Q = 0,\,W > 0$ and $\Delta {E_{{\mathop{\rm int}} }} = - W$
  • C$W = 0,\,Q > 0,$ and $\Delta \,{E_{{\mathop{\rm int}} }} = Q$
  • D$W > 0,\,Q < 0$ and $\Delta {E_{{\mathop{\rm int}} }} = 0$
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