4.4 Statements of the Second Law of Thermodynamics
Kelvin's ban on converting heat wholly into work, Clausius's ban on spontaneous cold-to-hot flow, and a proof that the two forbid the same thing.
University Physics Volume 2, 4.4 Statements of the Second Law of Thermodynamics
5 exercises
4.4 Exercise 1
What is the efficiency of a perfect heat engine? What is the coefficient of performance of a perfect refrigerator?
4.4 Exercise 2
Show that for the hypothetical engine of the figure(b).
4.4 Exercise 3
In the text, we showed that if the Clausius statement is false, the Kelvin statement must also be false. Now show the reverse, such that if the Kelvin statement is false, it follows that the Clausius statement is false.
4.4 Exercise 5
Discuss the practical advantages and disadvantages of heat pumps and electric heating.
4.4 Exercise 7
Speculate as to why nuclear power plants are less efficient than fossil-fuel plants based on temperature arguments.
Adapted from University Physics Volume 2 © 2016 Rice University. Licensed under CC BY 4.0. Source: University Physics Volume 2. Imported at revision db44eb9.