Professor Emeritus
Professor Emeritus
- Ph.D.: 1973, Weizmann Inst. of Science; Professor 1982.
- Application of mathematics to chemical engineeringproblems (diffusion coupled with chemicalreaction, isotope separation and theory ofboundary layers). Liquids and liquidmixtures, two phase equilibria, solubilities of organic compounds in water, vapour pressures of saturated solutions,solvent extraction chemistry, colligativeproperties of electrolyte andnon-electrolyte solutions. Electrical conductaces of weak unsymmetrical electrolytes in water; Evaluationof definite and infinite integrals, specialfunctions and integral transform theory.
- Vapour pressures of aqueous solutions of common inorganic salts. Conductance of 3:1 and 2:1 weak organic acids in water. Solubility of organic acids in water.Volumetric properties of water and electrolyte solutions. Application of the Laplace transform to evaluation of infinite integrals. Theory of the Volterra functions. Integral representations of elementary and special functions.
- Volumetric properties of water and electrolyte solutions Den-sities of water and of 0.1, 0.5 and 1.0 molal solutions of sodium chloride and of potassium chloride were determined at closely spaced 1K temperature intervals from T=277.15 K to T=343.15 K. These densities served to evaluate the apparent molar vol-umes, coefficients of thermal expansion, the apparent molar expansibilities and the second derivatives of volume with re-spect to temperature. Vapour pressures of saturated aqueous solutions Vapour pressures of many common inorganic salts were determined as a function of temperature. From these vapour pressures it is possible to obtain water activities, osmotic cofficients and mo-lar enthalpies of vaporization and solution at saturation point. Integral representation of functions Integral representation of elementary and special functions were derived using the as-ymptotic limit of the infinite integral of the Bessel function Jv(vx).