Express the van der Waals equation of state as a virial expansion in powers of 1/Vm and obtain expressions for Band C in terms of the parameters a and b. The expansion you will need is (1-x)-1= 1+ x + x2 + ...
What are the values of a and b in the corresponding van der Waal equation of state? Measurements on along gave B = -21.7 cm3mol-1 and C = 1200 cm 6 mol -2 for virial coefficients at 273 K.