9. Some gas (ν = 0,25 kmol) occupies a volume V1 = 1 m3. When the gas expands to a volume V2 = 1,2 m3 was completed work against the forces of intermolecular attraction, which is equal to 1.42 kJ. Determine the amendment and, in the equation of van der Waals forces.

Detailed solution. Decorated in Microsoft Word 2003. (Target decided to use formula editor)