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keisanHigh-precision calculations for everyday life and work

Estimating the Vapor Pressure of Pure Substances

Author: kimioChanExecutions: 1602

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Tc =
K
Pc_MPa =
MPa
Omega =
Abs_T =
K Tc or lower
T =  ℃
Tr = (T/Tc) =  
Pitzer_Vapour_P_MPa =  MPa
Pitzer_Vapour_P_atm =  ATM
Pitzer_Vapour_P_ata =  ata=kgf/cm^2
Estimating the Vapor Pressure of Pure Substances
When vapor pressure data is unavailable, use the estimation formula based on Pitzer’s ω.
ln(Ps/Pc) = f0(Tr) + ω*f1(Tr)

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