金属小球振动法测空气比热容比实验课程教学改革探索

摘要

气体的比热容之比γ是热力学实验过程中特别绝热实验过程中的一个非常重要的物理参数.详细研究了金属小球振动法测比热容比的原理推导过程,从实验本身出发,推导出空气比热容比的计算方法,研究比较了金属小球振动法测空气比热容比的实验教学改进方法,为大面积推广金属小球振动法测空气比热容比实验做了一定的技术准备.%The heat capacity of gas γ is a very important physical parameter in the analysis of thermodynamic processes,especially in adiabatic process. This paper deduces the principle of measuring the heat capacity of gas based on the metal ball vibration method. The calculation method of the heat capacity of air is experimentally ob-tained. The improving experiment teaching method of the metal ball vibration method is proposed.