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Do water and ice have the same specific ...

Do water and ice have the same specific heats?

Text Solution

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No, their specific heats are different. For water,
`s = 1 cal.g^(-1) .^(@)C^(-1)`
and for ice, `s = 0.5 cal.g^(-1) .^(@)C^(-1)`.
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Knowledge Check

  • A small quantity mass m, of water at a temperature theta ("in " ^(@)C) is poured on to a larger mass M of ice which is at its melting point. If c is the specific heat capacity of water and L the specific heat capacity of water and L the specific latent heat of fusion of ice, then the mass of ice melted is give by

    A
    `(ML)/(mc theta)`
    B
    `(Mc theta)/(L)`
    C
    `(mc theta)/(ML)`
    D
    `(mc theta)/(L)`

  • 2kg of ice at 20^C@ is mixed with 5kg of water at 20^C@ in an insulating vessel having a negligible heat capacity. Calculate the final mass of water remaining in the container. It is given that the specific heats of water & ice are 1kcal//kg//^@C 0.5 kcal//kg//^@C while the latent heat of fusion of ice is 80kcal//kg

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  • Ice in a freezer is at –7^(@)C . 100 g of this ice is mixed with 200 g of water at 15°C. Take the freezing temperature of water to be 0°C, the specific heat of ice equal to 2.2 J//g .^(@)C , specific heat of water equal to 4.2 J//g .^(@)C , and the latent heat of ice equal to 335 J/g. Assuming no loss of heat to the environment, the mass of ice in the final mixture is closest to

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    67 g
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    54 g
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    45 g

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