甘油比热容与浓度关系的实验研究

Experimental Study of the Relationship between Glycerine Specific Heat Capacity and Concentration

比热容是描述物质热学性质的一个重要物理量,本文利用电流量热器法测定了不同浓度下甘油溶液的比热容,并根据实验结果对甘油溶液的比热容与浓度的关系进行了分析,给出了甘油溶液的比热容与浓度关系的实验曲线及拟合方程。结果表明,随着浓度的增加,甘油溶液的比热容减小。这一结论在化学工业,制冷业等方面有着重要的参考价值。

Specific heat capacity is of importance in describing thermal character. This article has used the electric current calorimeter law to determine the glycerine solution ratio heat capacity under the different concentration. According to the experimental result, the thesis has carried on the analysis of the relationship between the glycerine solution＇s ratio heat capacity and the concentration, and has given the experimental curve and the fitting equation of the relationship between the glycerine solution＇s ratio heat capacity and the concentration. The result indicates that along with concentration increasing, the glycerine solution＇s ratio heat capacity reduces. This conclusion has the important reference value in the chemical industry, refrigeration industrv and so on.