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所在平台: Udemy |
课程主页: https://www.udemy.com/course/chemical-thermodynamics/
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课程名称:化学热力学 课程概述: “热力学”一词意味着热的流动。该课程涉及伴随各种物理和化学过程的能量变化。它有助于建立在特定条件下预测过程(包括化学反应)可行性或自发性的标准,并确定在达到平衡之前,过程(包括化学反应)能够进行的程度。热力学基于两个一般法则,即热力学的第一法则和第二法则,这些法则基于人类经验。 系统: 系统被定义为任何特定的物质部分,该部分通过一个边界面与其他宇宙部分分隔开。一个系统可以由一个或多个物质组成。 环境: 与系统可能交换能量和物质的宇宙其余部分称为环境。 系统类型: (i) 封闭系统 - 一种既不能与其环境交换能量也不能交换物质的系统。 (ii) 开放系统 - 一种既能与其环境交换物质又能交换能量的系统。 宏观性质: 与宏观系统(即由大量粒子组成的系统)相关的性质称为宏观性质。这些性质包括压力、体积、温度、成分、密度等。
The word ‘thermodynamics' implies the flow of heat. It deals with energy changes accompanying all types of physical and chemical processes. It helps to lay down the criteria for predicting the feasibility or spontaneity of a process, including a chemical reaction, under a given set of conditions. It also helps to determine the extent to which a process, including a chemical reaction, can proceed before attainment of equilibrium. Thermodynamics is based on two generalizations called the first and second laws of thermodynamics. These are based on the human experience.System: A system is defined as any specified portion of matter under study which is separated from the rest of the universe with a bounding surface. A system may consist of one or more substances.Surroundings: The rest of the universe which might be in a position to exchange energy and matter with the system is called the surroundings.Types of system(i) Isolated systemA system which can exchange neither energy nor matter with its surrounding is called an isolated system.(ii) Open systemA system which can exchange matter as well as energy with its surroundings is said to be an open system.Macroscopic propertiesThe properties associated with a macroscopic system (i.e. consisting of large number of particles) are called macroscopic properties. These properties are pressure, volume, temperature, composition, density etc.