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非均相电解质水溶液比热容的测定
Measurement of Specific Heat Capacity for the Heterogeneous Aqueous Electrolytes
【摘要】 制备了一个简易绝热型热量计,并用此热量计实测了 7 种非均相电解质水溶液在 5~60℃范围内不同温度区间的比热容,提出了比热容与温度的经验关联式⒚关联式的计算值和实验值的平均相对偏差均小于 1% ⒚热量计采用标准物质正庚烷标定,装置的测量精度为 0.9% ⒚
【Abstract】 A conventional adiabatic calorimeter was constructed and the specific heat capacities of 7 heterogeneous aqueous electrolytes have been measured at the temperatures from 5 ℃to 60 ℃. The correlation of specific heat capacity with temperature has been presented. The average deviations between the calculated and measured values were within 1%. Calorimeter is calibrated by n heptane, which is the standard reference substance for calorimetry. The accuracy of measurement was about 0.9 per cent.
【关键词】 比热容;
热量计;
非均相电解质水溶液;
测定;
【Key words】 specific heat capacity; calorimeter; heterogeneous aqueous electrolyte; measurement;
【Key words】 specific heat capacity; calorimeter; heterogeneous aqueous electrolyte; measurement;
- 【文献出处】 科技通报 ,Bulletin of Science and Technology , 编辑部邮箱 ,1999年05期
- 【分类号】O642
- 【下载频次】105