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1 gm of water having a volume of 1 cc be...

1 gm of water having a volume of 1 cc becomes. 1671 cc steam when boiled at atmospheric pressure. If latent heat of vapourization of water is `540cal//gm` at 1 atm, how much gain in internal energy takes place ?

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Knowledge Check

  • If the concentration of water vapour in the air is 1% and the total atmospheric pressure equals 1 atm then the partial pressure of water vapour is :

    A
    0.1 atm
    B
    1 mm Hg
    C
    7.6 mm Hg
    D
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  • Latent heat of vaporisation of a liquid at 500K and 1 atm pressure is 10.0 kcal/mol. What will be the change in internal energy (triangleE) of 3 mole of liquid at same temperature:

    A
    13.0 kcal
    B
    `-13.0 kcal`
    C
    27.0 kcal
    D
    `-27.0 kcal`

  • A vessel has nitrogen gas and water vapours at a total pressure of 1 atm. The partial pressure of water vapours is 0.3 atm. The contents of this vessel are transferred to another vessel havig one third of the capacity of original volume, completely at the same temperature, the total pressure of the system in the new vessel is :

    A
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    B
    1 atm
    C
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    D
    2.4 atm

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