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.
Radhika Batra , 11 Years ago
Grade 11
