Please question 3 and question 4 if possible!
compression factor, Z = PVm / RT
Virial equation of state is PVm = RT [ 1 + (B/Vm) {truncated after second virial coefficient}
=> Z = 1 + B/Vm
Vm = RT/P
=> Z = 1 + BP/RT
For Water P1/T1 = P2/T2
=> 1 atm / 373 K = P2 / 300 K [as normal boiling point of water at 1 atm is 373 K]
=> P2 = (300/373) atm
Z = 1 - (1126*300) / (0.0821 * 1000 * 300 * 373) where, R = 0.0821 L atm K-1 mol-1 and 1 L = 1000 cm3
=> Z = 0.9632
So approximately option (c) is correct.
3. The second virial coefficient for water at 300.0 K is reported as -1126 cm3 mol-1. Calculate t...
For methane at 273 K the second virial coefficient is B = 53.6 cm3/mol With what slope does Z approach the perfect gas value as p approaches zero at 273K?