- #1
grandpa2390
- 474
- 14
Homework Statement
Use the fundamental eq for the helmholtz eq to find dA for 1 mole of ideal gas as it expands isothermally from 5L to 15L at 298 Kelvin
Homework Equations
dA = -PdV - SdT
PV = nRT
The Attempt at a Solution
I tried to solve this the same way I did the problem on the previous page to calculate the isothermal compressibility, but it is not working out.
I know that dT is going to equal zero, so dA = -PdV but when I try to calculate P, I am not sure how factor in the change in V. I think I remember doing this at the beginning of the semester, but I can't remember. or find my notes. Any hints?