A 1.50 mole sample of an ideal gas at 28.5\deg C expands isothermally from an initial volume of
22.5 dm3 to a final volume of 75.5 dm3. Calculate w for this process (a) for expansion
against a constant external pressure of 1.00 * 105 Pa, and (b) for a reversible expansion ideal
gas c) VdW reversable expansion of Ne --look for theVdW parameters online.