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

作　　者：顾飞燕[1] 李娜[2] 

机构地区：[1]浙江大学化工系,浙江杭州310027 [2]杭州龙山化工总厂,浙江杭州310053

出　　处：《科技通报》1999年第5期354-358,共5页Bulletin of Science and Technology

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％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 

分 类 号：O646.1[理学—物理化学] O645.176[理学—化学]