Question

a system gives out 20 J of heat and also does 40 j of work . What is the internal energy changes​

Answer 1

Answer:

60 J

Explanation:

Given :

Δ W = 20 J

Δ Q = 20 J

We are asked for for Δ U

We have :

Δ U = Δ Q + Δ W

Δ U = 20 + 40 J

Δ U = 60 J

Therefore , change in internal energy of the system is 60 J.