A thermally insulated container is divided into two parts by a screen. In one part the pressure and temperature are $P$ and $T$ for an ideal gas filled. In the second part it is vacuum. If now a small hole is created in the screen, then the temperature of the gas will
  • A
    Decrease
  • B
    Increase
  • C
    Remain same
  • D
    None of the above
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