Година XXII, Книжка 4, 2013Следващ бройАрхивПредишен брой
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Учебно съдържание, планове, програми и стандарти
Учебно съдържание, планове, програми и стандарти
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RECASTING THE DERIVATION OF THE CLAPEYRON EQUATION INTO A CONCEPTUALLY SIMPLER FORM
The Clapeyron equation specifies the variation of the pressure, \(P\), with respect to the temperature, \(T\), of a closed two-phase one component system at the phase boundary under conditions of thermodynamic equilibrium. Even though in the context of th...
Clapeyron equation, phase equilibria, chemical thermodynamics, molar Gibbs energy, equilibrium thermodynamics
CHEMICAL REACTIONS DO NOT ALWAYS MODERATE CHANGES IN CONCENTRATION OF AN ACTIVE COMPONENT
It is shown in this paper that the use of Le Chatelier’s principle as a Principle of Moderation fails. It is discussed moderation of mole fractions and moderation of molar concentration (molarity) in a reaction of ideal gases. An analysis carried out on therm...
chemical equilibrium, changes in concentration, Le Chatelier’s principle, moderation of molar concentration, moderation of mole fractions.
Учебно съдържание, планове, програми и стандарти
Учебен експеримент в природните науки
POLYMETALLIC COMPEXES: CV. SYNTHESIS, SPECTRAL, THERMOGRAVIMETRIC, XRD, MOLECULAR MODELLING AND POTENTIAL ANTIBACTERIAL PROPERTIES OF TETRAMERIC COMPLEXES OF Co(II), Ni(II), Cu(II), Zn(II), Cd(II) AND Hg(II) WITH OCTADENTATE AZODYE LIGANDS
Twelve complexes of Co(II), Ni(II), Cu(II), Zn(II), Cd(II) and Hg(II) with two octadentate oxygen – nitrogen donor azodye ligands have been prepared. The characterization of the complexes has been made basing upon analytical, conductance, magnetic susceptibili...
polymetallic complexes, tetrameric complexes, azodye complexes
SYNTHESIS AND CHARACTERIZATION OF MIXED LIGAND Cu(II) AND Co(II) COMPLEXES OF L-PHENYLALANINE AND IMINODIACETIC ACID
Mixed ligand complexes, \(\mathrm{Na}\left[\mathrm{M}\left\{\left(\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CH}_{2} \mathrm{CH}\left(\mathrm{NH}_{2}\right) \mathrm{COO}\right)\right\}\right.\) \(\left.\left\{\mathrm{NH}\left(\mathrm{CH}_{2} \mathrm{COO}\right)_{2}...
phenylalanine, iminodiacetic acid, \(\operatorname{Cu}\) (II) and \(\operatorname{Co}\) (II) complexes, synthesis, characterization, structure