VAPOR PRESSURE. Vapor pressure of a liquid is defined in the Condensed Chemical Dictionary as "the characteristic at any given temperature of a vapor in equilibrium with its liquid or solid form.

Schematic and Key Components. The schematic of a VPA system is shown in Figure 3: Figure 3. ... Vapor pressure of Bifenthrin is too low to be measured at 25°C, but can be extrapolated from the DVS ...

where P is vapor pressure, R is universal gas constant (8.314m 3.Pa.K-1.mol-1), T is temperature in Kelvin, M is molecular weight, and A is area of the aperture of the Knudsen cell. The gradient of ...