Vapor pressure pascal

TABLE 10.7 Vapor Pressures (Pascals)" as a Function of Temperature between 283.15 and 323.15 K for Several Polycyclic Aromatic Hydrocarbonsb... 

Vapor pressure is the plasticizer physical property that determines volatility. Vapor pressures (Pascals at 25°C) from the chemical literature [2,3] are shown below. 

N2. The vapor pressure, P, of PETN in Pascals as a function of temperature is... 

Therefore, the partial pressure of water v tiptir in air is directly related Io the measurement of humidity This vapor pressure varies horn 1.22 x 10 mb imillihan of mercury (0.122 Pascal) at the -7 C frost point of "hone dry" arctic or industrial dry air—to 1.013 x I01 mb ol mercury 10.1013 x IO1 Pasculi at ihe IIX) C dew poini of saturated hot air in a product drier This is a change of almost a million to one over the span of interest in industrial humidity measurement,... 

Fig. 10 Comparison between the atmospheric particle- to gas-phase partition coefficients (ftp, in m3/ Jig) for BDE-47, BDE-100, BDE-99, BDE-154, and BDE-153 (clusters from right to left) and their sub-cooled liquid vapor pressures (P [, in Pascals) in the 1997-1999 Chicago air samples (r2 = 0.763, n = 60). From Strandberg et al. [42]...

A comnarison of the two major types of chromatography, GC and LC, reveals that the major differences can be attributed to the differences in properties between gases and liquids. The two most important parameters in GC are (1) the nature of the stationary phase and (2) temperature. In LC they are (1) the nature of the stationary phase and (2) the nature of the mobile phase. In general, GC can be used only with volatile samples (those that boil below 500°C or have a vapor pressure of several kilo-pascals) that are also thermally stable, and this is not a limitation imposed on LC. For further comparison, we can examine the differences between gases and liquids. 

Pascal, SI unit of pressure or stress (= N/m ) vapor pressure of pure solvent at given temperature magnitude of a colligative property of a polymer solution (Section 2.9)... 

The saturation vapor pressure of water is given by Sonntag (1990) in pascals (N/mv at Asolute temperature T (K). 

The following values of the vapor pressure of metallic elements are given in pascals. For conversion, note that 1 Pa = 7.50 imHg are calculated from the equations in the preceding table. All values = 9.87-10 atm. 

This table gives the sublimation (vapor) pressure of some representative solids as a function of temperature. Entries include simple inorganic and organic substances in their solid phase below room temperature, as well as polycyclic organic compounds which show measurable sublimation pressure only at elevated temperatures. Substances are listed by molecular formula in the Hill order. Values marked by represent the solid-liquid-gas triple point. Note that some pressure values are in pascals (Pa) and others are in kUopascals (kPa). For conversion, 1 kPa = 7.506 mmHg =... 

The following table gives the vapor pressure of mercury in kUo-pascals (100 kPa = 1 bar) from the triple point (234.3156 K) to the critical point (1764 K). The data are generated from the formulation of Huber, Laesecke, and Friend in Reference 1, which is based on a critical evaluation of all the published data on mercury vapor pressure and related thermodynamic properties. The estimated uncertainty in the vapor pressure is ... 

VPD can be defined as the difference between the actual vapor pressure, e, and the maximum vapor pressure possible at the temperature of the sample (2i). The difference in vapor pressure between supercooled water and ice is not a constant. As Figure 2 shows, the VPD (measured in pascals) increases from 0 to a maximum of 27 Pa at around -11 °C before falling to 26 Pa at -15 °C. 

Note-. Monthly means for temperature, relative humidity, and vapor pressure deficit (VPD) in pascals. 

Physical Properties. At room temperature 1,3-butadiene is a highly reactive, colorless gas with a mildly aromatic odor (30). Physical properties are given in Table 1. Plots of heat of vaporization, vapor pressure, vapor and liquid heat capacity, liquid density, surface tension, and vapor and liquid viscosity are available as functions of temperature (32), as are plots of vapor and liquid thermal conductivity and heat of formation and free energy of formation of the gaseous butadiene (36). The vapor pressure of butadiene in Pascals... 

The following table gives the vapor pressure of mercury in kUo-pascals (100 kPa = 1 bar) from 0°C to 800°C. 

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