Question

Please help me

A system has internal energy U1. If 500 J of heat is
supplied to it and at the same time it does 300 J of
work. Calculate the internal energy of the system in
the new state.
[Ans. U1=+200J]
step by step answer required ​

Answer 1

Answer:

by first law of thermodynamics we know that,

∆U=Q+W

Explanation:

THEREFORE...

∆U=500-300=200

as work is done BY THE SYSTEM

so -300

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