Review First Half of Physics 16B...

We began Friday with a review of the Zeroth and First Law of Thermodynamics and the work that heat is capable of producing. Section 16B introduces the Second and Third Law of Thermodynamics. The Second Law establishes the fact that heat flows from a "higher concentration" or hotter object to a cooler object or "lower concentration. This principle is the behind the functions of internal and external combustion engines. This video does a great job of explaining the use of this Second Law and how an engine works.

Remember to study the names of the men that were responsible for the study and development of the engine.

This section of Physics also used the Carnot Cycle to show the idea of what an ideal machine would look like--meaning a machine that has 100% efficiency. You will have to remember the four steps of this cycle for the test as they are described in the video below.

On Monday we will be finishing this section and then continue with 16C on  "Entropy and the Heat Death of the Universe."