part A pls

3.42. For methyl chloride at 100C the second and third virial coefficients are: B=242.5cm3mol1C=25,200cm6mol2 Calculate the work of mechanically reversible, isothermal compression of 1mol of methyl chloride from 1 bar to 55 bar at 100C. Base calculations on the following forms of the virial equation: (a) Z=1+VB+V2C (b) Z=1+BP+CP2 where B=RTBandC=(RT)2CB2 Why don't both equations give exactly the same result