- #1
Silviu
- 624
- 11
Hello! I read that the Helmholtz free energy is minimized at constant T and V at equilibrium. But I am not sure I understand why. So starting from ##F=U-TS## I got ##dF = \mu dN - pdV -SdT##. So at constant V and T we have ##dF = \mu dN##. Now I am not sure how does this implies that F is minimized and minimized with respect to what? Can someone tell me why is F minimized? Thank you!