11-04-2019
Physics

contestada

What is the change in internal energy if 20 J of heat is released from a system and the system does 50 J of work on the surroundings?
A.-80 J
B.-20 J
C.80 J
D.20 J

Respuesta :

moedlmichele moedlmichele

11-04-2019

The correct answer is a -80 J

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meep26wesley meep26wesley

11-04-2019

Answer:

A is the answer to this question. Hope this helps!

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