In Lesson 6A, we learned that the 1st Law does not tell us everything we need to know about thermodynamic processes.
We need to develop an understanding of the 2nd Law of Thermodynamics in order to address issues relating to spontaneity, equilibrium and efficiency.
Before we study the 2nd Law, however, it will be most helpful if we get a better understanding of the nature of the three types of cycles: Power Cycles (or Heat Engines), Refrigeration Cycles and Heat Pump Cycles.
In this lesson, we will learn how individual devices or processes work together to carry out the three different types of cycles.
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