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Skip to 0 minutes and 16 secondsThis week of thermodynamics in energy engineering, we are going to demonstrate the usefulness of the property relations in various situations. Thermodynamic properties such as temperature, pressure, volume and entropy are related with each other. Some property changes depending on other property changes are kind of clear and can be easily obtained. For example, the dependence of volume on temperature at constant pressure can be simply calculated from the equation of state for ideal gases or the thermal expansion coefficient for solids. However, the dependence of entropy on pressure is not that simple at a glance. The Maxwell relations or property relations convert those non-simple relations into more familiar ones with some mathematical manipulations.

Skip to 1 minute and 13 secondsThis week, we are going to be looking at various situations that need Maxwell relations in calculating property changes. We will be able to interpret the situations into mathematical formulations with the help of Maxwell relations.

The week ahead

Welcome to the Last week of the course. During this final week, we focus our attention to applying property relations to various situations to demonstrate their usefulness.

Thermodynamic properties such as temperature, pressure, volume and entropy are related with each other. Some property changes depending on other property changes are kind of clear and can be easily obtained. However, some relations are not that intuitive. For example, the dependence of entropy on pressure is not that simple at a glance. The power of property relations is to convert those non-simple relations into more familiar ones with some mathematical manipulation. The versatility of property relations is demonstrated in various situations.

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This video is from the free online course:

Thermodynamics in Energy Engineering

Hanyang University