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CE Predict/Explain (a) If you rub your hands together,

Physics with MasteringPhysics | 4th Edition | ISBN: 9780321541635 | Authors: James S. Walker ISBN: 9780321541635 54

Solution for problem 63P Chapter 18

Physics with MasteringPhysics | 4th Edition

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Physics with MasteringPhysics | 4th Edition | ISBN: 9780321541635 | Authors: James S. Walker

Physics with MasteringPhysics | 4th Edition

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Problem 63P

Problem 63P

CE Predict/Explain (a) If you rub your hands together, does the entropy of the universe increase, decrease, or stay the same? (b) Choose the best explanation from among the following:

I. Rubbing hands together draws heat from the surroundings, and therefore lowers the entropy.

II. No mechanical work is done by the rubbing, and hence the entropy does not change.

III. The heat produced by rubbing raises the temperature of your hands and the air, which increases the entropy.

Step-by-Step Solution:

Solution 63P

Step 1 of 2

We have to choose the correct statement from the given set.

a) If we rub our hands together, due to the friction, heat will be generated and it will be added to the surroundings. Therefore, the heat of the surroundings will increase. The equation for the change in entropy is,

Where,  - Change in heat

              - temperature of the system

So, it is clear that the entropy of the universe will increase since the excess heat is added up to the surroundings since we rub our hands together.

_____________________________________________________________________________

b)

Step 2 of 2

Chapter 18, Problem 63P is Solved
Textbook: Physics with MasteringPhysics
Edition: 4
Author: James S. Walker
ISBN: 9780321541635

Since the solution to 63P from 18 chapter was answered, more than 499 students have viewed the full step-by-step answer. Physics with MasteringPhysics was written by and is associated to the ISBN: 9780321541635. This full solution covers the following key subjects: entropy, rubbing, hands, heat, Together. This expansive textbook survival guide covers 32 chapters, and 3833 solutions. The answer to “CE Predict/Explain (a) If you rub your hands together, does the entropy of the universe increase, decrease, or stay the same? (b) Choose the best explanation from among the following:I. Rubbing hands together draws heat from the surroundings, and therefore lowers the entropy.II. No mechanical work is done by the rubbing, and hence the entropy does not change.III. The heat produced by rubbing raises the temperature of your hands and the air, which increases the entropy.” is broken down into a number of easy to follow steps, and 76 words. The full step-by-step solution to problem: 63P from chapter: 18 was answered by , our top Physics solution expert on 07/27/17, 10:59AM. This textbook survival guide was created for the textbook: Physics with MasteringPhysics, edition: 4.

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CE Predict/Explain (a) If you rub your hands together,