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测定铜的比热实验,多数学生都做不好,测得铜的比热同标准值比较相差较大。这里介绍做好这个实验的几点经验。做好这个实验,除了注意通常所要求的事项之外,应特别注意以下两个方面。首先是物理仪器、实验用品的选择。学生做此实验时不计量热器小筒吸收的热量,但量热器小筒是要吸热的。虽然水的比热大约是铝的比热的5倍,但当量取的水的质量与小铝筒的质量可比时,小铝筒吸热仍很可观,热量损失可达
Determination of specific heat of copper experiments, most students are not doing well, measured the specific heat of copper with a larger difference between the standard value. Here are some experiences to do this experiment. Do this experiment, in addition to note the usual requirements, should pay special attention to the following two aspects. The first is the choice of physical equipment, experimental supplies. Students do not measure the amount of heat absorbed by the heater cartridge when doing this experiment, but the calorimeter cartridge is intended to absorb heat. Although the specific heat of water is about 5 times the specific heat of aluminum, but when taking the quality of water equivalent to the quality of small aluminum cylinder, small aluminum cylinder heat absorption is still considerable, the heat loss up to