Ethylene at 167 C and 7 bar is being processed, and the following virial coefficients were reported: B = -54.8 cm3 /mol C = 4 120 cm6 /mol2 Estimate the molar volume and the compressibility factor for ethylene under these conditions by the: a) Ideal gas equation. b) The virial equation of state truncated to second virial coefficient. c) The virial equation of state truncated to third virial coefficient.