An ideal gas described by Ti=291K, Pi=1.50bar, and Vi=13.3L is heated at constant volume until P=15.0bar. It then undergoes a reversible isothermal expansion until P=1.50bar. It is then restored to its original state by the extraction of heat at constant pressure. Calculate w for step 2 (P, Vi, T → Pi, V2, T).

Explanation:

Hello,

In this case, the steps are:

In such a way, the work per mole (w) for that isothermal process turns out:

In addition, if the moles are required, since it is an ideal gas:

So the work is:

Best regards.

we can conclude that the melting point of table salt is above room temperature (it's actually 801 deg c). the melting point of mercury must be below room temperature (- 39 deg c).