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Inquiry into Physics

8th Edition
Ostdiek
ISBN: 9781337515863
Textbook Problem

(¦ Indicates a review question, which means it requires only a basic understanding of the material to answer. Questions without this designation typically require integrating or extending the concepts presented thus far.)
42. A homeowner plans to design and build a new patio using 8 in. by 4 in. by 2 in. paving blocks. The blocks are delivered in a large pile by the quarry operator and men laid by the stone mason in the geometrical pattern specified by the owner.
After 25 years, the home is sold to new owners who wish to put in a deck. They have the patio completely demolished, breaking up the blocks into gravel, which is used as fill at another construction site. In this scenario, over 25 years, the blocks existed in three different states: (1) as a pile of as-yet-unused building material; (2) as a decorative patio; and (3) as broken-up gravel. Which of the following represents the proper ranking of these three slates in order of incmnijig entropy? Explain your choice.
(a) 1,2,3
(b) 1,3,2
(c) 2,1,3
(d) 2,3,1
(e) 3,2,1
(f) 3,1,2

To determine

The ranking of the three given states in terms of their ascending entropy.

Explanation

Given information:

The blocks over the past 25 years were in the following states:

  1. As a pile of as-yet-unused building material.
  2. As a decorative patio.
  3. As broken-up gravel.
.

In terms of thermodynamics, the entropy is the measure of system’s disturbance or randomness. It is also referred as absence of thermal energy in a system for its conversion into mechanical work. This entropy of the system increases with time as per the second law of thermodynamics...

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