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The internal energy change in a system that has absorbed 12 Kcals of heat and done 23000 J of work is : |
48100 J 35900 J 27400 J 24700 J |
27400 J |
Q = \(\Delta\) U + W \(\Delta\) U = Q - W = 12 x 4.2 x 1000 - 23000 = 27400 J |
