6 papers · 1 filter
The Heats of Reactions. Calorimetry and Van't-Hoff. 3
I. A. Stepanov
Earlier, the author found that for the biggest part of chemical reactions the law of conservation of energy must have the following form: dU=dQ+PdV+SUM. In the present paper this r…
The Heats of Reactions. Calorimetry and Van't-Hoff. 2
I. A. Stepanov
Earlier, the author found that for the biggest part of chemical reactions the law of conservation of energy must have the following form: dU=dQ+PdV+SUM In the present paper this re…
The 1st Law of Thermodynamics in Chemical Reactions
I. A. Stepanov
In the previous papers of the author it has been shown that the 1st law of thermodynamics in chemical reactions is the following one: dU=dQ+PdV+SUM In the present paper this theory…
Dependence of the Energy of Molecules on Interatomic Distance at Large Distances
I. A. Stepanov
Earlier it has been supposed that energy of molecules depends on interatomic distance according to the curve 1, Fig. 1. However, dissociation of molecules (for example, Te2=2Te) of…
The Heats of Reactions. Calorimetry and Van't-Hoff. 1
I. A. Stepanov
It has been supposed that the law of conservation of energy in chemical reactions has the following form: dU=dQ-PdV+SUM Earlier the author has shown that for the biggest part of re…
Thermodynamics of Substances with Negative Thermal Expansion Coefficient
I. A. Stepanov
The 1st law of thermodynamics for heat exchange is dQ=dU+PdV. According to K. Martinas etc., J. Non-Equil. Thermod. 23 (4), 351-375 (1988), for substances with negative thermal exp…