Question

What is ΔU for the Adiabatic free expansion?

Answer 1

Answer:

Various applications of the adiabatic assumption

For a closed system, one may write the first law of thermodynamics as : ΔU = Q – W, where ΔU denotes the change of the system's internal energy, Q the quantity of energy added to it as heat, and W the work done by the system on its surroundings.