Vapor pressure and boiling temperature of a pure substance¶

[1]:

import si_units as si
from feos.eos import EquationOfState, PhaseEquilibrium
from feos.pcsaft import PcSaftParameters

parameters = PcSaftParameters.from_json(
    substances=['methanol'],
    pure_path='../../parameters/pcsaft/gross2002.json'
)
eos = EquationOfState.pcsaft(parameters)

[2]:

# returns pure substance vapor pressures
vapor_pressure = PhaseEquilibrium.vapor_pressure(eos, 350 * si.KELVIN)
vapor_pressure

[2]:

[156.97275783530898 kPa]

[3]:

# returns pure substance boiling temperatures
boiling_temperature = PhaseEquilibrium.boiling_temperature(eos, 15 * si.BAR)
boiling_temperature

[3]:

[426.1370718962781 K]