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Two identical samples of gases are allow...

Two identical samples of gases are allowed to expand to the same final volume (i) isothermally (ii) adiabatically. Work done is

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A cubic metre of dry air at NTP is allowed to expand to 5 cubic metres (i) isothermally, (ii) adiabatically. Calculate in each cae, the pressure, temperature and work done. ( gamma=1.4 and 1 atm=1.013xx10^(5)Nm^(-2) )

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Knowledge Check

  • Two gases have the same initial pressure, volume and temperature. They expand to the same final volume, one adiabatically and the other isothermally

    A
    the final temperature is greater for the isothermal process
    B
    the final pressure is greater for the isothermal process
    C
    the work done by the gas in greater for the isothermal process
    D
    all the above options are incorrect

  • Two samples A and B of the same mass of a gas ,initially at the same pressure ,temperature and volume are compressed to half the original volume .A isothermally and B adiabatically .The final pressure of A is

    A
    greater than that of B
    B
    equal to that of B
    C
    less than that of B
    D
    twice that of B

  • Statement-1: Two gases at same pressure, volume & temperature are compressed to same volume. The first isothermally and second adiabatically, greater work is done on the gas for an adiabatic process. Statement-2: Final temperature for gas going under isothermal process is more than gas going under adiabatic process.

    A
    Statement-1 is true, statement-2 is true, statement-2 is a correct explanation for statement-1
    B
    Statement-1 is true, statement-2 is true, statement-2 is NOT a correct explanation for statement-1
    C
    Statement-1 is true, statement-2 is false
    D
    Statement-1 is false, statement-2 is true

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