Heat capacities and thermal diffusivities of some n-alkanoic acid methyl esters

Add time:07/12/2019    Source:sciencedirect.com

The heat capacities and thermal diffusivities of n-alkanoic acid methyl esters CnH2n−1O2CH3 with n from 6 to 12 have been measured. The heat capacities have been measured in the temperature range from 303.15 K to 373.15 K; the measurements of thermal diffusivity have been carried out for a given methyl ester from 303.15 K to the temperature at which a noticeable evaporation of the ester took place. The temperature dependencies of the heat capacities and thermal diffusivities have been approximated by a third-order and a first-order polynomial, respectively. It has been shown that the dependence of the molar heat capacity on n (n = 1–14) at a temperature of 298.15 K is close to linear.

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