共查询到20条相似文献,搜索用时 31 毫秒
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热力学第一定律是热学、工程热力学、大学化学等课程中非常重要的内容,针对学生对热力学第一定律掌握困难的问题,本文提出了一种有效确定该定律中物理量正负号及其数值正负号的方法,并对该方法的运用进行了详细阐述。通过课堂教学实践,学生对该定律的掌握和理解得到了很大提升,起到了很好的教学效果。 相似文献
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孟庆苗 《山东教育学院学报》2004,19(3):104-105
对黑洞视界的研究结果表明 :黑洞热力学第三定律可禁止裸奇性的出现 ;反之 ,裸奇性的出现必破坏黑洞热力学第三定律。由此推断宇宙监督假设就是黑洞热力学第三定律。 相似文献
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李品钧 《黔南民族师范学院学报》2009,29(3):33-36,65
目前部分高校教材中对热力学第零定律内容存在的表述不准确、实验设计不科学、实验设计与所陈述的定律相游离等问题作了指陈和分析,并针对这些问题分别从热力学第零定律的物理实质和物理意义两个角度出发,提出了对应的两种定律陈述和实验设计的修改意见. 相似文献
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刘烈昌 《赣南师范学院学报》2004,25(6):113-114
结合教学的实践试谈了在热力学第二定律及熵概念的教学中,应基于传统的理论体系之上;应强化和深化熵概念的教学;并将特殊条件下热力学第二定律的表述纳入教学内容. 相似文献
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Jayant B. Udgaonkar 《Resonance》2001,6(9):61-66
The second law of thermodynamics makes no distinction between living and non-living things. Indeed, the concepts of thermodynamics constitute the unifying principles of physics, chemistry and biology. 相似文献
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Jason Rosenhouse 《Science & Education》2017,26(1-2):3-25
The argument that the second law of thermodynamics contradicts the theory of evolution has recently been revived by anti-evolutionists. In its basic form, the argument asserts that whereas evolution implies that there has been an increase in biological complexity over time, the second law, a fundamental principle of physics, shows this to be impossible. Scientists have responded primarily by noting that the second law does not rule out increases in complexity in open systems, and since the Earth receives energy from the Sun, it is an open system. This reply is correct as far as it goes, and it adequately rebuts the most crude versions of the second law argument. However, it is insufficient against more sophisticated versions, and it leaves many relevant aspects of thermodynamics unexplained. We shall consider the history of the argument, explain the nuances various anti-evolution writers have brought to it, and offer thorough explanations for why the argument is fallacious. We shall emphasize in particular that the second law is best viewed as a mathematical statement. Since anti-evolutionists never make use of the mathematical structure of thermodynamics, invocations of the second law never contribute anything substantive to their discourse. 相似文献
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何英 《蒙自师范高等专科学校学报》1996,(4)
Gibbs相律(F=K-Φ+2)的适用条件是什么呢?一般的物理化学教科书只强调:Gibbs相律适用于只受外界温度和压力影响的平衡热力学系统。笔者认为Gibbs相律适用于只受外界温度和压力影响的相间无任何限制的平衡热力学系统。 相似文献
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Harjinder Singh 《Resonance》1996,1(12):49-59
A dice throwing game is used to develop the key concepts in statistical thermodynamics of systems with two or three energy states. The experiment will demonstrate how, according to the second law of thermodynamics, an increasing number of molecules in an assembly produces a particular distribution of microstates. It will also lead to a statistical definition of temperature. 相似文献
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本文针对理想气体的准静态过程:将热力学第一定律中的三个物理量——功,内能与热量的变化值在P—V图上用面积直观地表示出来,并推出用面积表示上述三个物理量变化值的计算公式,对某些热力学过程,用本文的方法能方便的求解。 相似文献
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运用迁移规律进行《工程热力学》教学改革的实践 总被引:1,自引:0,他引:1
本介绍了笔在《工程热力学》的课堂教学中,为提高学生科学素质,培养学生的分析问题和解决问题的能力,运用学习的迁移定律,进行课堂教学改革的实践与体会。 相似文献
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应用热力学统计中玻尔兹曼分布律对PN结两个特性关系式进行推导,加深初学者对PN结原理的理解. 相似文献
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