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用差示扫描量热计(DSC)测定5个汽油馏分(沸点小于200℃)在243~299K范围内的比热容,测量误差在±2%以内。比较了比热容实测值与国外常用计算方法的预测结果。还由比热实验值计算低温焓,它们与铜量热计测得的高温焓间具有较好的一致性
The specific heat capacity of 5 gasoline fractions (boiling point less than 200 ℃) in the range of 243 ~ 299K was measured by differential scanning calorimetry (DSC) with the measurement error within ± 2%. The measured results of specific heat capacity and the prediction methods commonly used abroad are compared. Also calculated from the specific heat of low temperature enthalpy, and they measured with the copper calorimeter has a high temperature enthalpy between the better