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A 1 kg bar of copper is heated at atmospheric pressure (1.01 X 10 5 N / m 2 ). If it's temperature increases from 20 ° C to 50 ° C, calculate the change in it's internal Energy. ceofficient of linear expansion, alpha = 7 X 10 -6 per ° C, density roh = 8.92 X 10 3 kg/ m 3 and specific heat c = 387 J/ kg ° C.


A 1 kg bar of copper is heated at atmospheric pressure (1.01 X 10 5  N / m2 ). If  it's temperature increases from 20 ° C to 50 ° C, calculate the change in it's internal Energy. ceofficient of linear expansion, alpha = 7 X 10 -6 per ° C, density roh = 8.92 X 10 3 kg/ m 3    and specific heat c = 387 J/ kg ° C.


Grade:11

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