Question #319367
300 j of heat added to a system and 250 j of work is added by the system. what is the change in internal energy by the system?
Expert's answer
From the first law of thermodynamics we know that,
ΔU=q+W
In this case, q = 300 J, W = 250 J
∴ΔU=300+ 250= 550J
