Study on the thermodynamic properties of cholesterol |
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Authors: | L Peng X Jiangjun M Fangquan L Xi Z Chaocan |
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Institution: | (1) School of Sciences, Wuhan University of Technology, Wuhan, 430070, China;(2) School of Material Science and Technology, Wuhan University of Technology, Wuhan, 430070, China |
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Abstract: | The standard molar enthalpy of combustion of cholesterol was measured at constant volume. According to value of Δr
U
mθ(−14358.4±20.65 kJ mol−1), Δr
H
mθ(−14385.7 kJ mol−1) of combustion reaction and Δf
H
mθ(2812.9 kJ mol−1) of cholesterol were obtained from the reaction equation. The enthalpy of combustion reaction of cholesterol was also estimated
by the average bond enthalpies. By design of a thermo-chemical recycle, the enthalpy of combustion of cholesterol were calculated
between 283.15∼373.15 K. Besides, molar enthalpy and entropy of fusion of cholesterol was obtained by DSC technique. |
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Keywords: | bond enthalpy calorimetry cholesterol enthalpy recycle |
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