Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Water as a function

Table 4 presents the solubiHty of acrylonitrile in water as a function of temperature (6). Vapor—Hquid equiHbria for acrylonitrile in combination with... [Pg.181]

The density of the alkaU metal permanganate salts increases with the atomic number of the Group 1 (IA) cation, whereas the corresponding aqueous solubihty decreases (106). At room temperature aqueous solubiUty decreases from about 900 g/L for NaMnO to 60 g/L for KMnO, and to 2.5 g/L for CsMnO. The solubihty of potassium permanganate in water as a function of temperature is as follows ... [Pg.516]

The chart shown in Fig. 10-25 is for pure liqmds. Extrapolation of data beyond the ranges indicated in the graph may not produce accurate results. Figure 10-25 shows the variation of vapor pressure and NPSH reductions for various hydrocarbons and hot water as a function of temperature. Certain rules apply while using this chart. When using the chart for hot water, if the NPSH reduction is greater than one-half of the NPSH reqmred for cold water, deduct one-half of cold water NPSH to obtain the corrected NPSH required. On the other hand, if the value read on the chart is less than one-half of cold water NPSH, deduct this chart value from the cold water NPSH to obtain the corrected NPSH. [Pg.901]

Figure 1.12 shows the solubility of sugar in water as a function of temperature. Alternatively, we can say that it gives the concentration of sugar in a saturated solution at various temperatures. For example, at 20°C, we could say that the solubility of sugar is 204 g/100 g water or that a saturated solution of sugar contains 204 g/100 g water. ... [Pg.17]

At least thirty formulae representing the vapour-pressure of a liquid (usually water) as a function of temperature have appeared, and new ones are always being published. Some of the best known are due to ... [Pg.179]

Finally, they measured the enthalpy of solution of C HsO in water as a function of concentration and extrapolated to infinite dilution to get a value of -5.84 kJ-mol-1 for the reaction... [Pg.452]

FIGURE 8.10 The liquid-vapor boundary curve is a plot of the vapor pressure of the liquid (in this case, water) as a function of temperature. The liquid and its vapor are in equilibrium at each point on the curve. At each point on the solid liquid boundary curve (for which the slope is slightly exaggerated), the solid and liquid are in equilibrium. [Pg.438]

Using Example 4.5, vary the temperature of the water using Eb(WW) and J(WW) values from Table 3.2 in Chapter 3. Remember that temperature in degrees C = 100 xTb(WW). From the Studies 4.5a and b, create a profile of the diffusion of a solute in water as a function of water temperature and solute hydropathic states. [Pg.68]

J. C. Dore, M. A. M. Sufi, and M. Bellissent-Funel, Structural change in D2O water as a function of temperature the isochoric temperature derivative function for neutron diffraction. Phys. Chem. Chem. Phys. 2, 1599-1602 (2000). [Pg.287]

An important addition to the model was the inclusion of virtual particles representative of lone pairs on hydrogen bond acceptors [60], Their inclusion was motivated by the inability of the atom-based electrostatic model to treat interactions with water as a function of orientation. By distributing the atomic charges on to lone pairs it was possible to reproduce QM interaction energies as a function of orientation. The addition of lone pairs may be considered analogous to the use of atomic dipoles on such atoms. In the model, the polarizability is still maintained on the parent atom. In addition, anisotropic atomic polarizability, as described in Eq. (9-28), is included on hydrogen bond acceptors [65], Its inclusion allows for reproduction of QM polarization response as a function of orientation around S, O and N atoms and it facilitates reproduction of QM interaction energies with ions as a function of orientation. [Pg.243]

Figure 11 Van t Hoff plot of log solubility of methylprednisolone in water as a function of reciprocal water temperature. (Reprinted with permission from Ref. 47.)... Figure 11 Van t Hoff plot of log solubility of methylprednisolone in water as a function of reciprocal water temperature. (Reprinted with permission from Ref. 47.)...
Figure 3 Vapor pressure of water as a function of temperature. Figure 3 Vapor pressure of water as a function of temperature.
Figure 1. Anion-free Water As A Function of NaCl Concentration. Figure 1. Anion-free Water As A Function of NaCl Concentration.
Figure 2. Hydration Water As A Function of Concentration and Method of Determination. Figure 2. Hydration Water As A Function of Concentration and Method of Determination.
Fig. 14.13 (a) Bubble temperatures estimated using the MRR method as a function of thermal conductivity for the rare gases, (b) Hydrogen peroxide concentration following sonication of pure water as a function of gas solubility in different rare gases ( ) He ( ) Ne (a) Ar ( ) Kr ( ) Xe ( ) He/Xe mixture [42] (reprinted with permission from the American Chemical Society)... [Pg.373]

Fig. 6. Excess chemical potential of hard-sphere solutes in SPC water as a function of the exclusion radius d. The symbols are simulation results, compared with the IT prediction using the flat default model (solid line). (Hummer et al., 1998a)... Fig. 6. Excess chemical potential of hard-sphere solutes in SPC water as a function of the exclusion radius d. The symbols are simulation results, compared with the IT prediction using the flat default model (solid line). (Hummer et al., 1998a)...
Figure 3.1.1 The solubility of gaseous carbon dioxide in water as a function of both temperature and pressure. The CO2 solubility is expressed in terms of the mole fraction of carbon dioxide in the liquid solution. Figure 3.1.1 The solubility of gaseous carbon dioxide in water as a function of both temperature and pressure. The CO2 solubility is expressed in terms of the mole fraction of carbon dioxide in the liquid solution.
Figure 5.19.2 A graph of the vapor pressure of liquid water as a function of temperature (on the left), and a graph of the natural logarithm of the vapor pressure of water as a function of the reciprocal of temperature. Figure 5.19.2 A graph of the vapor pressure of liquid water as a function of temperature (on the left), and a graph of the natural logarithm of the vapor pressure of water as a function of the reciprocal of temperature.
Figure 5. Changes in 23, C//23St/ ratios in water as a function of time in the aquifer shown in Figure 4. Velocity of the water is assumed to be constant, so distance of travel is directly proportional to time (12). Figure 5. Changes in 23, C//23St/ ratios in water as a function of time in the aquifer shown in Figure 4. Velocity of the water is assumed to be constant, so distance of travel is directly proportional to time (12).
Fig. 7.13 Measured refractive index of deionized water as a function of temperature. Reprinted from Ref. 20 with permission. 2008 Optical Society of America... Fig. 7.13 Measured refractive index of deionized water as a function of temperature. Reprinted from Ref. 20 with permission. 2008 Optical Society of America...
An alternative way of presenting this law is to note that a graph of absorbance A (as y ) against concentration c (as x ) will be linear. Figure 9.9 shows such a graph for the permanganate ion in water as a function of concentration. [Pg.442]

FIG. 5 The density of liquid and supercooled water as a function of temperature, illustrating the anomalous liquid phase density maximum of water (data from Lide, 2002-2003). [Pg.9]

Figure 8.23 Sulfate concentrations in pore waters as a function of the depth below the water-sediment interface of the Saanich Inlet Murray et al. (1978). The exponential curve supports the diffusional diagenetic model. Figure 8.23 Sulfate concentrations in pore waters as a function of the depth below the water-sediment interface of the Saanich Inlet Murray et al. (1978). The exponential curve supports the diffusional diagenetic model.
The view that the clay surface perturbs water molecules at distances well in excess of 10 A has been largely based on measurements of thermodynamic properties of the adsorbed water as a function of the water content of the clay-water mixture. There is an extensive literature on this subject which has been summarized by Low (6.). The properties examined are, among others, the apparent specific heat capacity, the partial specific volume, and the apparent specific expansibility (6.). These measurements were made on samples prepared by mixing predetermined amounts of water and smectite to achieve the desired number of adsorbed water layers. The number of water layers adsorbed on the clay is derived from the amount of water added to the clay and the surface area of the clay. [Pg.42]

Figure 3.4. Fluorescence emission intensity at 427 nm of KT4 M compound 1 in water as a function of pH. (Reproduced from Ref. 3i. Copyright 1988 American Chemical Society.)... Figure 3.4. Fluorescence emission intensity at 427 nm of KT4 M compound 1 in water as a function of pH. (Reproduced from Ref. 3i. Copyright 1988 American Chemical Society.)...
Flat plate leaching tests were used to determine the rate of leaching of contaminants from a SWM/COM surface. In these tests, the material (76 cm2 of flat surface as a disk, 2.5 cm thick) was placed in the bottom of a beaker and the beaker then filled with 11 of distilled water. The flux of contaminants (mg/cm2-h) was then determined by the increase of concentration in the overlying water as a function of time. [Pg.222]

Figure 13.13 A plot showing the behavior of the thermal coefficient of expansion a (deg-1) for different amino acids, peptide, and water as a function of temperature measured by PPC. The dashed curve displays the estimated progress baseline for the pre- and posttransition region. (Permission to use the figure granted by MicroCal, LLC.)... Figure 13.13 A plot showing the behavior of the thermal coefficient of expansion a (deg-1) for different amino acids, peptide, and water as a function of temperature measured by PPC. The dashed curve displays the estimated progress baseline for the pre- and posttransition region. (Permission to use the figure granted by MicroCal, LLC.)...
Direct experimental observation of the restructuring of water as a function of an applied field has been reported by several groups. For example, Bockris and Habib used Fourier Transform Infra-Red (FTIR) spectroscopy to show that water molecules stand up as the field in-... [Pg.142]

Figure 7.3 Standard Gibbs energies of transfer for reactants and activated complex for the Diels-Alder reaction of cyclopentadiene ( , ) with ethyl vinyl ketone (2, A) from 1-PrOH to 1-PrOH-water as a function of the mole fraction of water initial state (1 + 2, ) activated complex (o). Figure 7.3 Standard Gibbs energies of transfer for reactants and activated complex for the Diels-Alder reaction of cyclopentadiene ( , ) with ethyl vinyl ketone (2, A) from 1-PrOH to 1-PrOH-water as a function of the mole fraction of water initial state (1 + 2, ) activated complex (o).

See other pages where Water as a function is mentioned: [Pg.97]    [Pg.414]    [Pg.320]    [Pg.563]    [Pg.138]    [Pg.824]    [Pg.716]    [Pg.365]    [Pg.13]    [Pg.14]    [Pg.232]    [Pg.157]    [Pg.434]    [Pg.166]    [Pg.608]   
See also in sourсe #XX -- [ Pg.194 ]




SEARCH



Enzymes do Function Without Water as a Bulk Solvent- Lessons from Extreme Halophiles

Properties of Water and Steam as a Function

Pyranose to Furanose Interconversion as a Function of Time and Water

Solubility as a Function of Temperature and Henrys Constant at 25C for Gases in Water

Water contact angles as a function

Water dielectric constant, as function

Water dielectric constant, as function of frequency

Water function

Water permittivity, as function of frequency

© 2024 chempedia.info