Lecture 23 - The Second Law Of Thermodynamics And Carnot's Engine

Fundamentals of Physics


Why does a dropped egg that spatters on the floor not rise back to your hands even though no laws prohibit it? The answer to such irreversibility resides in the Second Law of Thermodynamics which is explained in this and the next lecture. The Carnot heat engine is discussed in detail to show how there is an upper limit to the efficiency of heat engines and how the concept of entropy arises from macroscopic considerations.