−60−40−2002040608010005k10k15k20k25k30k0100200300400500600700
Pressure (mmHg) Pressure 2 (mmHg)Pressure (mmHg) - fit 2Pressure 2 (mmHg) - fitFigure 4. Water Vapor Pressure vs. Propane Vapor PressureTemperature  (°C)Propane Pressure (mmHg)Water Pressure (mmHg)R​2 = 0.9995f(x) = (-15.4) + (15.7)*exp((0.0393)*x)R​2 = 0.9990f(x) = (-2.65e+3) + (6.63e+3)*exp((0.0172)*x)Liquid Gas