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प्रश्न
How much heat energy is required to melt 4 kg of ice at 0°C? (The sp. latent heat of fusion of ice is 336 × 103 J kg−1)
संख्यात्मक
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उत्तर
Given: m = 4 kg; L = 336 × 103 J kg−1
Heat required to melt ice = mL
= 4 kg × 336 × 103 J kg−1
= 1344 × 103 J
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