Modern Physics
Modern Physics
2nd Edition
ISBN: 9780805303087
Author: Randy Harris
Publisher: Addison Wesley
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Chapter 9, Problem 25E

A “cold” object, T 1 = 300 K , is briefly put in contact with a “hot” Object, T 2 = 400 K , and 60 J of heat flows from the hot object to the cold one. The objects are then separated their temperatures having changed negligibly due to their large sizes. (a) What are the changes in entropy of each object and the System as a whole? (b) Knowing only that these objects are in contact and at the given temperatures what is the ratio of the probabilities of their being found in the second (final) state to that of their being found in the first (initial) state? What does this result suggest?

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Chapter 9 Solutions

Modern Physics

Ch. 9 - Prob. 11CQCh. 9 - Prob. 12CQCh. 9 - Prob. 13CQCh. 9 - Prob. 14CQCh. 9 - Prob. 15CQCh. 9 - Prob. 16CQCh. 9 - Prob. 17CQCh. 9 - Prob. 18CQCh. 9 - Prob. 19ECh. 9 - Prob. 20ECh. 9 - Consider a room divided by imaginary lines into...Ch. 9 - Prob. 22ECh. 9 - The entropy of an ideal monatomic gas is...Ch. 9 - The diagram shows two systems that may exchange...Ch. 9 - A “cold” object, T1=300K , is briefly put in...Ch. 9 - Prob. 26ECh. 9 - Prob. 27ECh. 9 - Prob. 28ECh. 9 - Prob. 29ECh. 9 - Obtain equation (915) from (914). Make use of the...Ch. 9 - Show that equation (916) follows from (915) and...Ch. 9 - Using the relationship between temperature and M...Ch. 9 - Prob. 33ECh. 9 - Prob. 34ECh. 9 - Consider a simple thermodynamic system in which...Ch. 9 - Prob. 36ECh. 9 - Prob. 37ECh. 9 - Prob. 38ECh. 9 - Prob. 39ECh. 9 - Prob. 40ECh. 9 - Prob. 41ECh. 9 - Prob. 42ECh. 9 - Prob. 43ECh. 9 - Prob. 44ECh. 9 - Prob. 45ECh. 9 - For a room 3.0 m tall, by roughly what percent...Ch. 9 - Prob. 47ECh. 9 - A particle subject to a planet’s gravitational...Ch. 9 - Prob. 49ECh. 9 - You have six shelves, one above the other and all...Ch. 9 - Prob. 51ECh. 9 - Prob. 52ECh. 9 - Prob. 53ECh. 9 - Prob. 54ECh. 9 - Prob. 55ECh. 9 - Prob. 56ECh. 9 - Prob. 57ECh. 9 - Prob. 58ECh. 9 - Prob. 59ECh. 9 - Prob. 60ECh. 9 - Prob. 61ECh. 9 - Prob. 62ECh. 9 - Prob. 63ECh. 9 - Determine the density of states D(E) for a 2D...Ch. 9 - Prob. 65ECh. 9 - Prob. 66ECh. 9 - Prob. 67ECh. 9 - Prob. 68ECh. 9 - This problem investigates what fraction of the...Ch. 9 - Prob. 70ECh. 9 - Prob. 71ECh. 9 - Prob. 72ECh. 9 - Prob. 73ECh. 9 - Prob. 74ECh. 9 - Prob. 75ECh. 9 - Prob. 76ECh. 9 - Prob. 77ECh. 9 - Prob. 78ECh. 9 - Prob. 79ECh. 9 - Prob. 80ECh. 9 - Prob. 81ECh. 9 - The Debye temperature of copper is 345 K. (a)...Ch. 9 - Prob. 83ECh. 9 - In Exercise 35, a simple twostate system is...Ch. 9 - Prob. 86ECh. 9 - Prob. 87CECh. 9 - Prob. 89CECh. 9 - Prob. 90CE
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