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许多物理化学实验,如:燃烧热、溶解热、中和热测定及冰点下降测分子量等,一般都用贝克曼温度计来测量体系温度的变化。贝克曼温度计虽然精密,但因制做麻烦,易损坏而供不应求。根据有关资料报导,我们用热敏电阻代替贝克曼温度计,对溶解热和燃烧热的测定作了初步尝试,结果是可行的。下面就其测量原理和对溶解热的测定作
Many physicochemical experiments, such as: heat of combustion, heat of dissolution, determination of neutralization heat and molecular weight of freezing point, generally measure the change of system temperature by Beckman thermometer. Beckman thermometer although sophisticated, but due to make trouble, easy to damage and in short supply. According to the information reported, we use the thermistor instead of Beckman thermometer, heat of fusion and heat of determination made a preliminary attempt, the result is feasible. The following measurement principle and on the determination of dissolved heat for