【摘要】 针对工科大学物理实验II中液氮比汽化热实验存在的课程内容简单、学时利用率低、学生创新思维培养不足以及数据处理软件讲解过多等问题，本文通过分组引入LabVIEW编程、温差法测量液氮比汽化热、混合法测量铜柱放热量等拓展内容，对149名工科学生的实验感受进行问卷调查.研究结果表明，混合法测量铜柱放热量在难度设计上适中，物理思想丰富，不仅保证了实验教学的满意度，还提升了实验内容的层次性，有助于学生深入理解实验，显著提高实验成绩.更多还原

【Abstract】 In the experiment of “Measuring the specific latent heat of vaporization of liquid nitrogen” in the Physics Experiment Ⅱ for engineering students, there are several issues, such as the simplicity of the curriculum content, low utilization rate of class hours, insufficient cultivation of students′ innovative thinking, and excessive explanation of data processing software. To address these problems, we introduce extended content such as LabVIEW programming, the differential method for measuring the specific latent heat of vaporization of liquid nitrogen, and the mixing method for measuring the heat released by a copper column in groups. A questionnaire survey is conducted among 149 engineering students regarding their experimental experiences. The results show that the mixing method for measuring the heat released by a copper column is appropriately challenging and rich in physical concepts. It not only ensures the satisfaction of experimental teaching but also enhances the hierarchy of the experimental content, which helps students to gain a deeper understanding of the experiment and significantly improves their experimental performance.更多还原