，pressure，up，here，is，a，derivative，of，A，with，respect，to，volume。

You can get thepressure from the fact that the p So you take thederivativeofA withrespecttovolumehere.

youdao

，pressure，up，here，is，a，derivative，of，A，with，respect，to，volume。

You can get thepressure from the fact that the p So you take thederivativeofA withrespecttovolumehere.

youdao