Pressure
The pressure is given by
- Failed to parse (Conversion error. Server ("https://wikimedia.org/api/rest_") reported: "Cannot get mml. Server problem."): {\displaystyle p=-\left.{\frac {\partial A}{\partial V}}\right\vert _{T,N}=kT\left.{\frac {\partial \ln Q}{\partial V}}\right\vert _{T,N}}
where is the Helmholtz energy function, is the volume and is the canonical ensemble partition function.