摘要
用一种简易的控温方法实现对饱和食盐水比热容的散热法测量,并对其结果的不确定度进行分析.与文献值比较,该方法所得结果可信,其不确定度主要来源于系统的散热系数及温度的测量.
In this paper, the specific heat of saturation salt solution was measured by coolingmethod,and the uncertainly of result was analyzed. It was shown that, the specific heat value of saturation salt solution was approximately 3. 243J/（g · K）, absoluteness uncertainty was 0. 261 J/（g · K）. The reliability of result mainly depended on the experiment system error and measuring of temperature.
出处
《物理通报》
2011年第12期67-70,共4页
Physics Bulletin
关键词
比热容
散热法
不确定度
Specific heat
Cooling method
Uncertainty
