Cecil E. VanderzeeWalter Wm. RodenburgElsevier LtdJournal of Chemical ThermodynamicsVanderzee, C. E.; Rodenburg, W. W. The Enthalpy of Solution of Gaseous Hydrogen Fluoride in Water at 25 °C. J. Chem. Thermodyn. 1971, 3, 267-276....
Enthalpies of mixing in water of 2-methyl-2-butanol with several electrolytes (alkali-metal halides, tetra-n-alkylammonium bromides, Ph 4 PCl, Ph 4 AsCl and NaPh 4 B) have been determined by flow microcalorimetry at 25掳C. Enthalpic pair interaction coefficients, h NE , of the virial ...
Enthalpies of mixing in water of 2-methyl-2-butanol with several electrolytes (alkali-metal halides, tetra-n-alkylammonium bromides, Ph 4 PCl, Ph 4 AsCl and NaPh 4 B) have been determined by flow microcalorimetry at 25°C. Enthalpic pair interaction coefficients, h NE , of the virial ex...
have a standard enthalpy of formation zero. Enthalpy of formation means enthalpy change during the formation of one mole of a substance. But an element formed from itself means no enthalpy change, so its enthalpy of formation will be zero. What is the enthalpy of formation of water?
(25) is shown in Fig. 15. It can be seen that the specific enthalpy of seawater is less than pure water by 14 % at 12 g/kg salinity and 120 °C. Sign in to download hi-res image Fig. 15. Variation of enthalpy with temperature and salinity [36]. The summary of various ...
Viscosity measurements of NaCIO4 solutions in water tetrahydrofuran (THF) mixtures have been performed at 25掳C. The salt concentration was 0.05 mol kg1 of solvent. A minimum in the relative viscosity corresponding to 5 mol% and a maximum to ca. 70 mol% THF have been observed. The ...
at 25°C and 1 atm. For a compound: • For a gas it is a pressure of exactly 1 atm • For a substance in solution, it is a concentration of exactly1 M. • For a pure solid or liquid, it is the pure solid or liquid. Reactions showing the heats of formation: The reaction...
Enthalpies of mixing a non-ionic surfactant with water at 303.15 K studied by calorimetry The enthalpy of mixing n-octyl penta(oxyethylene glycol)(C8E5) with water has been studied at 303.15 K by titration and mixing calorimetry. In the region o... Kristian Weckstrm,K Hann,JB Rosenholm - ...
Thermal effects of solution of ammonium bromide in hexamethylphosphotriamide (HMPT)-water mixtures at 4° C, 15°C, and 46°C in the region of minor additions of the nonaqueous component were investigated for the first time by calorimetry. Variations of heat capacity in the course of solution...
The enthalpies of solution of KCl in water in the molality range 0.007 to 0.07 mol·kg −1 have been determined at 308.15 and 313.15 K with a heat-flux calorimeter. Values for the relative apparent molar enthalpies have been used to calculate the molar enthalpy of solution at infinite dilut...