[jswim23]

Hello everyone I am new to this site and I am hoping to be using it more often as I am in Pchem and it gets confusing sometimes. I just want to make sure I am on the right track.
 
So here is the question/s.

Calculate the change in internal energy, Delta U, when 1.7 litre of an ideal gas at an initial pressure of 1.0 atm is expanded or compressed isothermally to a final volume of 1.0 litres reversibly.

Would this not just be 0 because isothermal states that Delta U is 0 because its dependant on T

[rabolisk]

Yes, the answer is 0 because U is only a function of T for ideal gases.