A 5 litre pressure vessel contains 200g of propane. Using the Peng Robinson EOS calculate the pressure in the vessel at 50oC. What state is the propane likely to be in? Show the intermediate calculation values of a,b,m and a(T))
100 g of propane is removed from the cylinder and is replaced with 100 g of ethane. Recalculate the pressure of the vessel at 50oC. Assume all binary interaction coefficients are zero.
Critical parameters and acentric values:
Ethane:
MW = 30.069
Pc = 707.79 psia
Tc = 32.27 oC
w = 0.0986
Propane:
MW = 44.096
Pc = 616.41 psia
Tc = 96.67 oC
w = 0.1524