| . |
|
Chemical Hazards and Reactions |
. | |||
Vapor Pressure |
||||||
|
The pressure exerted by a vapor against the sides of a closed container is
called vapor pressure. Vapor pressure is temperature dependent. As temperature increases, so does the vapor pressure. Thus, more liquid evaporates, vaporizes or volatilizes. The lower the boiling point of the liquid, the greater the vapor pressure it will exert at a given temperature. Values for vapor pressure are most often given as millimeters of mercury (mm Hg) at a specific temperature. Usually the higher the vapor pressure, the more volatile the substance. |
|||||
|
||||||
| . |
