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ताम्बे के एक बर्तन का द्रव्यमान 500 ग्राम है । इसका ताप `40^(@) ` तक बढ़ाने के लिए आवश्यकता उष्मा की गणना कीजिए । ताम्बे की विशिष्ट ऊष्मा 0.09 जूल किग्रा `.^(@)C` है ।

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`Delta Q= MS. Delta T = 500 xx 0 .09 xx 40`
`=1800` कैलोरी

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