说明高中热力学第一原理的实验:在瓶子里产生酒精云

IF 1.2 Q2 EDUCATION & EDUCATIONAL RESEARCH
Antonio Tomás Serrano
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引用次数: 0

摘要

本文提出使用一个简单的实验(酒精云的创建)作为教学资源,在高中学习热力学第一定律,尽管它也可以用于其他背景和不同的教育水平。考虑到本建议的目标学生,对实验中涉及的物理过程(液体的蒸发-冷凝和气体的压缩-膨胀)进行了本质上的定性分析。此外,还讨论了其他液体(特别是水)的可能使用,并提出了几个补充实验,以帮助理解云的形成。关键词:热力学第一原理;adiabatico进程;蒸汽压力;酒精云。An experiment to illustrate the first thermodynamics in high school)的原则:creating a cloud of酒精越多bottleAbstract: This政见条操作简单experiment as a didactic resource for the study of the first law of thermodynamics in high school,尽管it can还提出了其他contexts and at不同教育水平。考虑到这一建议的目的学生,本实验对所涉及的物理过程(液体的蒸发-冷凝和气体的压缩-膨胀)进行了基本的定性分析。此外,还讨论了可能使用其他液体(特别是水)来进行实验,并提出了一些补充实验,以帮助理解为什么会形成云。关键词:热力学第一定律;Adiabatic process;塔pressure;酒精cloud。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Un experimento para ilustrar el primer principio de la termodinámica en bachillerato: creación de una nube de alcohol dentro de una botella
En este articulo se propone la utilizacion de un sencillo experimento (la creacion de una nube de alcohol) como recurso didactico para el estudio de la primera ley de la termodinamica en bachillerato, aunque tambien puede utilizarse en otros contextos y en diferentes niveles educativos. Teniendo en cuenta el alumnado al que se dirige esta propuesta, se realiza un analisis, esencialmente, cualitativo de los procesos fisicos que intervienen en este experimento (evaporacion-condensacion de un liquido y compresion-expansion de un gas). Ademas, se comenta el posible uso de otros liquidos (especialmente, el agua) y se plantean varios experimentos complementarios que ayudan a comprender por que se forma la nube. Palabras clave: Primer principio de la termodinamica; Proceso adiabatico; Presion de vapor; Nube de alcohol. An experiment to illustrate the first principle of thermodynamics in high school: creating a cloud of alcohol inside a bottle Abstract: This article proposes to conduct a simple experiment as a didactic resource for the study of the first law of thermodynamics in high school, although it can also be used in other contexts and at different educational levels. Taking into account the students to whom this proposal is intended, an essentially qualitative analysis of the physical processes involved in this experiment (evaporation-condensation of a liquid and compression-expansion of a gas) is carried out. In addition, the possible use of other liquids (especially, water) to carry out the experiment is discussed and several complementary experiments are proposed that help to understand why the cloud is formed. Keywords: First law of thermodynamics; Adiabatic process; Vapour pressure; Alcohol cloud.
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来源期刊
CiteScore
1.30
自引率
33.30%
发文量
31
审稿时长
25 weeks
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