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This table gives coefficients in an equation for the vapor pressure of 65 metallic elements in both the solid and liquid state. Vapor pressures in the range 10-10 to 102 Pa (10-15 to 10-3 atm) are covered. The equation is:
Metals Vapor pressure. This table gives coefficients in an equation for the vapor pressure of metallic elements in both the solid and liquid state. Vapor pressure in the range of 10-15 to 10-3-atmare covered. The equation is: log(p/atm) = A + B T + C *log(T) + D T3.
Boca Raton, Florida, 2003; Section 4, Properties of the Elements and Inorganic Compounds; Vapor Pressure of the Metallic Elements. The equations reproduce the observed pressures to an accuracy of ±5% or better. Coefficients from this source:
APPROXIMATE VAPORIZATION TEMPERATURES OF METALS AT VARYING PRESSURES Element Melting Point °C 10-5-0.01 °C 10 4 0.1 °C 10-3 1 °C 10 2 10 °C 10-1 100 °C 760 Torr 760,000µ °C Ag 965 768 849 921 1046 1160 2213 Al 660 724 807 888 996 1124 2057 Au 1063 1082 1191 1316 1466 1646 2996 B 2300 - 1141 1238 1354 1488 2549 ...
30 Ιαν 2023 · Generally a substance's vapor pressure increases as temperature increases and decreases as temperature decreases (i.e. vapor pressure is directly proportional to temperature). This chart shows that this trend is true for various substances with differing chemical properties.
Standard Temperature and Pressure Table B Physical Constants for Water Table C Selected Prefixes Table D ... Formula Name Formula Name Reference Tables for Physical Setting/Chemistry ... Reference Tables for Physical Setting/Chemistry – 2011 Edition 4 Table H Vapor Pressure of Four Liquids 0 25 50. 75 100. 125 200. 150. 100. 50. 0 Vapor Pressure
Vapor pressure is expressed in millimetres of mercury (mm Hg) or in kilopascals (kPa) at 20°C and normal atmospheric pressure of 760 mm Hg (101.32 kPa). A vapor pressure greater than 760 mm Hg (101.32 kPa) indicates that the substance is in the gaseous state.
