A thermodynamic approach is presented to classify geothermal reservoir as vapor or liquid dominated. According to it, the vapor dominated reservoir has specific volume of fluid (i.e. combined vapor and liquid) greater than the critical volume of water whereas the liquid dominated reservoir has lesser specific volume. Enthalpy is not a conservative entity in a geothermal system. Apart from it, t...

A B S X R A C T Unpoisoned sartorius muscles of Rana temporaria were stimulated tetanically in isometric contractions lasting up to 20 s at 0~ The observed enthalpy (heat + work) production and the chemical changes in these contractions were measured, and a comparison was made between the observed enthalpy and the enthalpy that could be explained by the chemical changes. Like earlier workers, w...

The solubility data of sodium theophylline salt in the water and aqueous hydroxide systems with molarities 0.00, 0.01, 0.10, 0.20, 0.49, 0.96 mol kg −1 at temperatures ranging from 283.15 to 368.15 K are determined via equilibrium method. experimental results show that increases on increasing temperature same concentration NaOH solution decreases an increase temperature. These correlate well po...

It is shown that accurate values of the rates of enthalpy generation in the electrolysis of light and heavy water can be obtained from measurements in simple, single compartment Dewar type calorimeter cells. This precise evaluation of the rate of enthalpy generation relies on the nonlinear regression fitting of the “black-box” model of the calorimeter to an extensive set of temperature time mea...

The development of new multicomponent nanoparticles is gaining increasing importance due to their specific functional properties, i.e., synthesised complex concentrated (CCNPs) in the form powder using ultrasonic spray pyrolysis (USP) and lyophilisation from initial cast Ag20Pd20Pt20Cu20Ni20 alloy, which was function material after its catalytic abilities had been exhausted. Hydrometallurgical ...

Because water dissolves in silicate melts as at least two species, H O molecules and OH groups, the exsolution 2 Ž . evaporation enthalpy of the H O component from a silicate melt depends on species proportions, which in turn depends on 2 H O pressure. In this short communication, a formal analysis of the exsolution enthalpy of water from a silicate melt is 2 presented, taking into account of t...

Abstract Recently, one of the authors suggested calculating void fraction, an essential element in thermalhydraulics, working with the ‘thermodynamic’ quality instead of the usual ‘flow’ quality. However, the standard heat balance is currently stated as a function of the ‘flow’ quality. Therefore, we should search a new energy balance between the mixture enthalpy, based on ‘thermodynamic’ quali...

Starch and proteins are major components in the wheat endosperm that affect its end product quality. Between the two textural classes of wheat i.e. hard and soft, starch granules are loosely bound with the lipids and proteins in soft wheat due to higher expression of interfering grain softness proteins. It might have impact on starch granules properties. In this work for the first time the phys...