Thermodynamics soap bubble

[Zero-shift]

For a system modelling a soap bubble, the differential work done is now given by:

dW = −pdV + γdA, where γ is the surface tension and A the area. Compute new differential expressions for the potentials U, H, F, G. What are the new natural variables in each case? Are there any new Maxwell relations?

 

[Mech_Engineer]

Hi Zero. This looks like a homework problem, can you provide more context as to where the problem is sourced from, and what you've already done to try and solve it?

 

[Zero-shift]

not homework, Its revision of past exam paper.