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 An ideal gas obeying kinetic theory of gases can be liquefied if

  • Option 1)

     Its temperature is more than critical temperature Tc

  • Option 2)

     Its pressure is more than critical pressure Pc

  • Option 3)

    Its pressure is more than Pc at a temperature less than Tc

  • Option 4)

     It cannot be liquefied at any value of P and T

 

Answers (1)

As we learnt in 

Critical Pressure -

Pressure applied on real gas at critical temperature

-

 

Absence of inter molecular attraction ideal gas cannot be liquefied at any volume of P and T.


Option 1)

 Its temperature is more than critical temperature Tc

Incorrect

Option 2)

 Its pressure is more than critical pressure Pc

Incorrect

Option 3)

Its pressure is more than Pc at a temperature less than Tc

Incorrect

Option 4)

 It cannot be liquefied at any value of P and T

Correct

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Vakul

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