Thermodynamics of undecanolactone,tridecanolactone, and pentadecanolactone from 0 to 340 K |
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Authors: | BV Lebedev AA Yevstropov YeG Kiparisova |
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Institution: | Chemistry Institute of Lobachevsky State University, Gorky, U.S.S.R. |
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Abstract: | The heat capacities Cpo of undercanolactone, tridecanolactone, and pentadecanolactone have been measured between 10 and 370 K in a vacuum adiabatic calorimetric cryostat within about 0.2 per cent. The temperatures and enthalpies of physical transitions have been also estimated. The enthalpies of combustion of the compounds have been measured in an isothermal calorimeter with an accuracy of 0.05 per cent. From the results the functions {H (T) ? H (0)}, So(T), and {Go(T) ? Ho(0)} have been calculated over the range 0 to 340 K, and the values of ΔHfo, ΔGfo and ΔSfo have been evaluated at T = 298.15 K. |
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