Vapor Pressure: Liquid-Gas Phase Boundary Pressure

• DEFAULT 1: Wagner 25 (Output details)

  ln(p/p^o) – ln(p_c/p^o) = T_c/T (A₁×t + A₂×t^1.5 + A₃×t^2.5 + A₄×t⁵); where t = 1 - T/T_c and p^o= 1 kPa

• DEFAULT 2: PV Expansion: (Output details)

  ln(p/p^o) = a₁ + a₂/T + a₃×ln(T) + a₄×T + a₅×T² + a₆/T² + a₇×T⁶+ a₈/T⁴; where p^o = 1 kPa

• Alternative 1: Antoine (Output details)

  ln(p/p^o) = A + B/(T + C); where p^o = 1 kPa

• Alternative 2: Yaws.VaporPressure (Output details)

  lg(p/p^o) = a + b/T + c×lg(T) + d×T + e/T² ; where p^o = 1 kPa and lg = log₁₀

• Alternative 3: DIPPR 115 (Output details)

  ln(p/p^o) = a + b/T + c×ln(T) + d×T² + e/T² ; where p^o = 1 kPa

• Alternative 4: DIPPR 101 (Output details)

  ln(p/p^o) = a + b/T + c×ln(T) + d×T^e ; where p^o = 1 kPa

• Alternative 5: Wagner 36 (Output details)

  ln(p/p^o) – ln(p_c/p^o) = T_c/T (A₁×t + A₂×t^1.5 + A₃×t³ + A₄×t⁶); where t = 1 - T/T_c and p^o = 1 kPa