【摘要】 低温的获得实验是通过降低恒温器内液氮的蒸气压使液氮达到预期的低温状态.通过实验,得出了液氮蒸气压与温度的关系曲线,并求得二者的拟合方程.该实验拓宽了学生的知识面,提高其学习兴趣.更多还原

【Abstract】 The experiment of low temperature attainment was designed to cool the liquid nitrogen in a thermostat to a desired lower temperature.The relation curve and fitted equation of the pressure and the temperature of liquid nitrogen were obtained based on the experiment.The students’ knowledge was broaden and their learning interest was stimulated.更多还原