PV Expansion: Vapor or Sublimation Pressure

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

NOTE: The TDE program truncates this equation based upon the extent and quality of the fitted data.