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Vapor Pressure Coefficients: Water
Vapor pressure equation coefficients for 345 pure compounds from Perry's CEH 8th Ed. Table 2-8. Equation form: ln(P/Pa) = C1 + C2/T + C3*ln(T) + C4*T^C5, where T is in Kelvin. Each row also provides the valid temperature range (Tmin_K, Tmax_K) and corresponding pressure bounds.
| compound name | C1 | C2 | C3 | C4 | C5 | CAS no | P at Tmax Pa (Pa) | P at Tmin Pa (Pa) | T unit | Tmax K (K) | Tmin K (K) | data source table | equation form | formula |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Water | 73.649 | -7,258.2 | -7.3037 | 0.000004 | 2 | 7732-18-5 | 21,930,000 | 611 | K | 647.096 | 273.16 | Table 2-8 | ln(P/Pa) = C1 + C2/T + C3*ln(T) + C4*T^C5 | H2O |
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