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A real gas expands into vacuum in thermally insulated container. Winch of the following properties of the gas will not change?
  • a)
    Internal energy and temperature
  • b)
    Internal energy
  • c)
    Temperature
  • d)
    All properties will change
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
A real gas expands into vacuum in thermally insulated container. Winch...
The given case is of adiabatic free expansion. For this, the internal energy of all the gases remains conserved. Moreover, the expression of internal energy of a real gas is given by

∴ 

Since, dV > 0, we have dT < 0. So, the temperature of the real gas will decrease.
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A real gas expands into vacuum in thermally insulated container. Winch of the following properties of the gas will not change?a)Internal energy and temperatureb)Internal energyc)Temperatured)All properties will changeCorrect answer is option 'B'. Can you explain this answer?
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