Question

In a process, 80 J of heat is absorbed by a system and 50 J of work is done by the system. What is the change in internal energy for this process ?​

Answer 1

Answer:

The change in internal energy for this process is 30J.

Explanation:

∆Q = 80J ∆W = -50J ∆U= ?

∆U = ∆Q + ∆W

∆U = 80 + (-50)

∆U = 80 - 50

∆U = 30J

Answer 2

Answer:

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