Big Chemical Encyclopedia

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

Articles Figures Tables About

Combined effects of temperature and

The Combined Effect of Temperature and Solvent Composition on Solute Retention... [Pg.118]

The effect of temperature, although significant, is not nearly as great as that from the ethanol content and is greatest at low concentrations of the polar solvent. It is clear, that the solute retention is the least at high ethanol concentrations and high temperatures, which would provide shorter analysis times providing the selectivity of the phase system was not impaired. The combined effect of temperature and solvent composition on selectivity, however, is more complicated and to some extent... [Pg.120]

Kudo I, Miyamoto M, Noiri Y, Maita Y (2000) Combined effects of temperature and iron on the growth and physi-... [Pg.134]

Figure 3. Combined effects of temperature and steam to oil ratio on the conversion. Total pressure = 1 atm no hydrogen removal. Figure 3. Combined effects of temperature and steam to oil ratio on the conversion. Total pressure = 1 atm no hydrogen removal.
Figure 4. Combined effects of temperature and pressure on the conversion. No hydrogen removal steam to oil molar ratio = 10. Figure 4. Combined effects of temperature and pressure on the conversion. No hydrogen removal steam to oil molar ratio = 10.
The flow behavior index (n) is assumed to be relatively constant with temperature and concentration, and the combined effects of temperature and concentration on the power law consistency index, K, are described by ... [Pg.53]

The magnitude of (kcal mole" ) increased slightly with storage time one week, 5.90 1.02 two weeks, 5.94 1.56 three weeks, 6.22 2.99 four weeks, 7.91 2.52. The combined effect of temperature and concentration was modeled using an equation similar to 5.13 and the results are given in Table 5-1. [Pg.246]

The Combined Effect of Temperature and Concentration on the Consistency Coefficient of Milk Concentrates In fC = + ( where X is... [Pg.312]

The principle of Le Chatelier-Braun states that any reaction or phase transition, molecular transformation or chemical reaction that is accompanied by a volume decrease of the medium will be favored by HP, while reactions that involve an increase in volume will be inhibited. Qn the other hand, the State Transition Theory points out that the rate constant of a reaction in a liquid phase is proportional to the quasi-equilibrium constant for the formation of active reactants (Mozhaev et al., 1994 Bordarias, 1995 Lopez-Malo et al., 2000). To fully imderstand the dynamic behavior of biomolecules, the study of the combined effect of temperature and pressure is necessary. The Le Chatelier-Braim Principle states that changes in pressure and temperature cause volume and energy changes dependent on the magnitude of pressure and temperature levels and on the physicochemical properties of the system such as compressibility. "If y is a quantity characteristic of equilibrium or rate process, then the influence of temperature (7 and pressure (P) can be written as ... [Pg.207]

Gaucheron, R, Famelart, M.H., Mariette, F., Raulot, K., Michel, R, and Le Graet, Y. Combined effects of temperature and high-pressure treatments on physicochemical characteristics of skim milk. Food Chem., 59, 439, 1997. [Pg.228]

Cationic polymerization is terminated by the presence of contaminants, including water. In experiments to note the combined effects of temperature and humidity on tack-free time, temperature of the substrate was controlled by means of the oscillating stage, as described above, and humidity was controlled by conducting the experiments in an environmental chamber. Results are shown in Table XI. [Pg.35]

The physico-chemical viewpoint of using extreme conditions is to explore the effect of temperature and pressure on the conformation, the dynamics and the reactions of biomolecules. The unique properties of biomolecules are determined by the delicate balance between internal interactions which compete with interactions with the solvent. The primary source of the dynamical behavior of biomolecules is the free volume of the system and this may be expected to decrease with increasing pressure. As temperature effects act via an increased kinetic energy as well as free volume, it follows that the study of the combined effect of temperature and pressure is a prerequisite for a full understanding of the dynamic behavior of biomolecules. By intuition, pressure effects should be easier to interpret than temperature effects. [Pg.2]

Fig. 15.5 and Table 15.2 [15.8] summarise the combined effects of temperature and size on spheres of the same dense limestone. [Pg.145]

Refers to the combined effects of temperature and salinity that contribute to density variations in the oceans, tidal marsh... [Pg.215]

The combined effect of temperature and sorbate is to lower the temperature phase transition temperature and increase its width. In the phase transition temperature range, both phases now coexist with all the material being crystalline. Above the transition temperature, there are only minor changes reflecting lattice expansion due to temperature within the orthorhombic (12 T atom) phase. [Pg.256]

The foaming process may also stress the laminate due to the combined effect of temperature and applied pressure on critical areas such as the panel edges and the corners. Defects generated here may in turn increase the gas diffusion inside the panel, reducing the designed lifetime. [Pg.202]

Absence of combined effect of temperature and concentration gradients... [Pg.85]

Fuel vapor canisters represent a relatively new automotive use of molded impact-modified nylon 6,6, and it is experiencing rapid growth (Fig. 9.5). It s an excellent choice for the application, given its inherent toughness and resistance to the combined effects of temperature and gasoline vapor. The Clean Air Act of 1990 mandated that aU cars, beginning with the 1998 model year, must make provisions to trap hydrocarbon fumes emitted from the fuel tank and related to the refuehng process. [Pg.590]


See other pages where Combined effects of temperature and is mentioned: [Pg.1288]    [Pg.141]    [Pg.159]    [Pg.187]    [Pg.382]    [Pg.1111]    [Pg.89]    [Pg.4168]    [Pg.826]    [Pg.1338]    [Pg.251]    [Pg.568]    [Pg.231]    [Pg.470]    [Pg.89]    [Pg.238]    [Pg.41]    [Pg.451]    [Pg.1292]    [Pg.495]    [Pg.288]    [Pg.214]    [Pg.255]    [Pg.3040]    [Pg.68]    [Pg.150]   


SEARCH



Combinations of effects

Combined Effects of Stress, Moisture, and Temperature

Combined effect

Combined effects of temperature and concentration

Effect of temperature and

Temperature effects, and

The Combined Effect of Temperature and Solvent Composition on Solute Retention

© 2024 chempedia.info