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In deriving the ideal-gas equation from the kinetic-

University Physics | 13th Edition | ISBN: 9780321675460 | Authors: Hugh D. Young, Roger A. Freedman ISBN: 9780321675460 31

Solution for problem 18DQ Chapter 18

University Physics | 13th Edition

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University Physics | 13th Edition | ISBN: 9780321675460 | Authors: Hugh D. Young, Roger A. Freedman

University Physics | 13th Edition

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Problem 18DQ

In deriving the ideal-gas equation from the kinetic- molecular model, we ignored potential energy due to the earth’s gravity. Is this omission justified? Why or why not?

Step-by-Step Solution:
Step 1 of 3

Solution 18DQ The ideal gas equation is derived from the assumption that, the interaction of the gas particles in between themselves is zero. With that, the gravitational effects are extremely less. We know that, gravity is the weakest force in nature. The universal gravitational constant value is extremely small and the masse of the gas particles is also very less. So, the gravitational effect and interaction are omitted from the ideal gas equation. By including the gravitational interaction also, the equation will be invariant up to many degrees of accuracy. CONCLUSION: And the most important fact is, the ideal gas is an abstract concept and there is no such gas which does not interact with each other. By it’s definition itself, it does not interact with the gravitational field. So, it’s appropriate to ignore the effect while deriving the equation.

Step 2 of 3

Chapter 18, Problem 18DQ is Solved
Step 3 of 3

Textbook: University Physics
Edition: 13
Author: Hugh D. Young, Roger A. Freedman
ISBN: 9780321675460

This textbook survival guide was created for the textbook: University Physics, edition: 13. Since the solution to 18DQ from 18 chapter was answered, more than 544 students have viewed the full step-by-step answer. The answer to “In deriving the ideal-gas equation from the kinetic- molecular model, we ignored potential energy due to the earth’s gravity. Is this omission justified? Why or why not?” is broken down into a number of easy to follow steps, and 27 words. University Physics was written by and is associated to the ISBN: 9780321675460. The full step-by-step solution to problem: 18DQ from chapter: 18 was answered by , our top Physics solution expert on 05/06/17, 06:07PM. This full solution covers the following key subjects: deriving, due, EARTH, Energy, equation. This expansive textbook survival guide covers 26 chapters, and 2929 solutions.

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In deriving the ideal-gas equation from the kinetic-