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प्रश्न
A piece of iron of mass 2.0 kg has a heat capacity of 966 J K−1. Find heat energy needed to warm it by 15°C.
संख्यात्मक
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उत्तर
We know that heat energy needed to raise the temperature by 15° is = heat capacity × change in temperature.
Heat energy required = 966 × 15 = 14490 J
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