__Problem:__

A pressurized vessel (V = 0.5 m^{3}) contains 5 kg steam (H_{2}O) at = 220°C. Calculate the pressure in the vessel

a) according to the ideal gas law

b) using the virial equation

c) using the Soave-Redlich-Kwong equation

d) using a high-precision equation of state

molar mass: M = 18.015 g/mol

2nd virial coefficient: B = - 293 cm^{3}/mol

critical temperature: T_{c} = 647.096 K

critical pressure: P_{c} = 220.64 . 105 Pa (220.64 bar)

acentric factor: w = 0.3443