Answer to Question #175052 in General Chemistry for JohnDoe

Question #175052

26-30. The internal energy of a system increases by 20 J and the quantity of work done on a system is 50 J. Is the heat absorbed or given off? By how much?

Expert's answer

∆U = Q+ W

Increase = 20

W = -50

20 = q -50

Q = 20+50

= 70

The heat is absorbed

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