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Ice at 0^(@)C is converted into steam at...

Ice at `0^(@)C` is converted into steam at `100^(@)C`. State the isothermal changes in this process?

Text Solution

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The isothermal changes are:
(i) Conversion of ice at `0^(@)C` to water at `0^(@)C`
(ii) Conversion of water at `100^(@)C` to steam at `100^(@)C`.
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The ice at 0^(@)C is converted into steam at 100^(@)C . State the isothermal changes in the process.

50 g of ice at 0^(@)C is converted to steam at 100^(@)C . Calculate the amount of heat given in this process. (Latent heat of vapourisation= 540 cal. per gm)

Knowledge Check

  • One mole of water at 100^@ C is converted into steam at 100^@ C at a constant pressure of 1 atm. The change in entropy is ____________. (heat of vaporization of water at 100^@ C=540 cal/g)

    A
    8.74 cal `mol^-1 K^-1`
    B
    18.76 cal `mol^-1 K^-1`
    C
    24.06 cal `mol^-1 K^-1`
    D
    26.06 cal `mol^-1 K^-1`

  • One mole of water at 100^(@)C is converted into steam at a constant pressure of 1 atm. The change in entropy is [heat of vaporisation of water at 100^(@)C = 540 cal//gm ]

    A
    8.74
    B
    18.76
    C
    24.06
    D
    26.06

  • A block of ice at 0^(@)C is converted to steam at 100^(@)C . Which process will require the most amount of heat?

    A
    Melting the block
    B
    Increasing temperature from `0^(@)C` to `100^(@)C`
    C
    Boiling the water
    D
    Data insufficient

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