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प्रश्न
Which requires more heat: 1 g ice at 0°C or 1 g water at 0°C to raise its temperature to 10°C? Explain your answer.
उत्तर
1 gram of ice at 0°C requires additional 80 calories of heat to get converted into water at 0°C. Then, heat is provided to raise the temperature to 10°C. Therefore, ice requires more heat than water and the additional heat is known as 'Latent heat of fusion of ice'.
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[Specific latent heat of fusion of ice = 336 × 103 J kg-1]
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