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प्रश्न
(i) State whether the specific heat capacity of a substance remains the same when its state changes from solid to liquid.
(ii) Give one example to support your answer.
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उत्तर
(i) No.
(ii) Specific heat of water 4.187 KJ/kg K
Specific heat of ice 2.103 KJ/kg K
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संबंधित प्रश्न
Heat energy is supplied at a constant rate to 100g of ice at 0 °C. The ice is converted into water at 0° C in 2 minutes. How much time will be required to raise the temperature of water from 0 °C to 20 °C? [Given: sp. heat capacity of water = 4.2 J g-1 °C-1, sp. latent heat of ice = 336 J g-1].
Heat supplied to a solid change it into liquid. What is this change in the phase called?
Give one example where high specific heat capacity of water is used as cooling purposes?
The specific heat capacity of water is :
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How much heat energy is released when 5 g of water at 20° C changes to ice at 0° C?
[Specific heat capacity of water = 4.2 J g-1 ° C-1 Specific latent heat of fusion of ice = 336 J g-1]
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