Differential heats of dissolution of potassium nitrate in water at 298.15 K near the saturation concentration

Autor:	Stanislav Kolařík, Jiří Hostomský, V. Pekárek
Rok vydání:	1983
Předmět:	chemistry.chemical_compound Chemistry Inorganic chemistry Potassium nitrate General Chemistry Saturation (chemistry) Dissolution
Zdroj:	Collection of Czechoslovak Chemical Communications. 48:1532-1537
ISSN:	1212-6950 0010-0765
DOI:	10.1135/cccc19831532
Popis:	Differential heats of dissolution of potassium nitrate in water at 298.15 K were measured on an 8 700 LKB calorimeter over a molality range 3-3.5 mol/kg. The dependence of the differential heat of dissolution, ΔLm (kJ/mol), on the molality can be described over the above range by the relation ΔLm = -33.933 + 3.635m. The value of the endothermic last dissolution heat obtained by extrapolation to the saturation concentration of 3.75 mol/kg was found to be -20.303 kJ/mol, with a standard deviation of 0.37 kJ/mol.
Databáze:	OpenAIRE
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