The equations describing chemical diffusion in the general case where the partial molal volumes of the diffusing components may differ and may vary with composition are reviewed and discussed. Exact and easily applied relations for obtaining chemical and intrinsic diffusivities are derived. The results ...
aclinical finisher 临床修整机[translate] aA concise description of an old problem: application of matrices to obtain the balancing coefficients of chemical equations 一个老问题的一个简明的描述: 获得化工等式平衡的系数的矩阵的应用[translate]
A new integral transform similar to Laplace and Sumudu transforms is introduced, to explain the use of Tarig transform in differential equations, an example of first and second order linear differential equations are presented. In this work we show that the applicability of this interesting new tran...
If the interactions between the matrix and the mobile ions in disperse systems are electrostatic, then the motion of equally charged ions caused by external fields must be described by the same equations. This leads to relations between the kinetic coefficients which hold for any geometrical model ...
AJC Varandas,JMC Marques - 《Journal of Chemical Physics》 被引量: 46发表: 1992年 On the existence of positive solutions for semilinear elliptic equations with singular lower order coefficients and Dirichlet boundary conditions We give sufficient conditions for the existence of positive solutions to so...
- 《Bulletin of the Chemical Society of Japan》 被引量: 150发表: 1996年 Hydrodynamics and fluctuations outside of local equilibrium: Driven diffusive systems We derive hydrodynamic equations for systems not in local thermodynamic equilibrium, that is, where the local stationary measures are "non-...
A mathematical model that describes both the transient and steady-state response of a single spherical porous catalyst pellet to a step input in concentration of a dilute binary gas mixture is presented. The model equations, which contain the effective diffusion coefficient of the dilute binary as ...
junction: Pt|H 2(g,p = 101.325 kPa)| HBr(m A), MgBr 2(m B)| AgBr(s)|Ag(s) The results have been interpreted using Harned's equations and the more comprehensive treatment of Pitzer. Activity coefficients for HBr in the salt mixtures obey Harned's rule at all ionic strengths ...
We present a summary of the spectroscopic equations necessary for prediction of the molecular transition energies and the Einstein A and B coefficients for rovibronic lines of the γ(0, 0) band of nitric oxide (NO). The calculated molecular transition energies are all within 0.57 cm -1 of pu...
The description of the equation and the other equations used in this work to calculate physicochemical properties (KL,ΔG1E,∞,ΔH1E,∞,ΔS1E,∞) are available in the literature [28]. The densities of the [emim][FAP] needed to calculateKLare given in Table1. ...