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