Question

write an expression for the internal energy of a system​

Answer 1

Step-by-step explanation:

Section Summary. The first law of thermodynamics is given as ΔU = Q − W, where ΔU is the change in internal energy of a system, Q is the net heat transfer (the sum of all heat transfer into and out of the system), and W is the net work done (the sum of all work done on or by the system).

Answer 2

Answer:

But why are u sad now ????