张掖地区沙土溶液比热容的热学测量  

The Heat Capacity of Sandy Soil Solution with Hybrid Method

作　　者：董光兴[1] 李雯娜[1] 孙桂华[1] 葛素红[1] 

机构地区：[1]河西学院物理与机电工程学院,甘肃张掖734000

出　　处：《河西学院学报》2017年第2期1-5,共5页Journal of Hexi University

基　　金：河西学院校长基金(项目编号:HXXYJY-2014-024)

摘　　要：应用普通物理实验室测量比热容的基本方法——混合法测量了张掖地区不同密度沙土溶液的比热容.发现:在常温下沙土溶液的比热容随着密度的增大而降低.推导了不同含水量下沙土比热容的理论公式,计算了含水量为(0-100)%沙土的比热容,计算结果与实验数据相比误差较小,认为这个理论公式可以在实践中应用.The paper measures specific heat capacity of sandy soil solution, and bases on Newton＇s law of cooling to process the experimental data. The correspondence relationship between specific heat of solution and the concentration has been obtained. The results show that the grater the concentration, the less the heat capacity. By measuring the heat capacity of sandy soil solution, we have verified the physical law that specific heat capacity of water is the biggest and enriching the understanding of the nature soil of the solution.

关 键 词：溶液 混合法 沙土 比热容 散热修正 

分 类 号：O551.1[理学—热学与物质分子运动论]