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# Internal Energy of a real gas

My question is whether the internal energy of the real gas includes the energy due to the interaction between molecules?

So we would have to do usual PV work as well as work against the interactions which means that $$\Delta U \neq 0$$ As First Law of thermodynamics still holds, will this extra work be converted to Heat or to internal potential energy?

Note by Ajinkya Shivashankar
5 months, 3 weeks ago