Introductory Chemistry (5th Edition)

Published by Pearson
ISBN 10: 032191029X
ISBN 13: 978-0-32191-029-5

Chapter 11 - Gases - Exercises - Questions - Page 400: 7

Answer

The Boyle's gas law defines the relationship between pressure and volume. According to this, the volume of gas is inversely proportional to its pressure at constant temperature. PV= constant. Therefore as the volume of a gas increases the pressure of the gas decreases and as the volume of a gas decreases the pressure of the gas increases. According to the kinetic theory, gas molecules collide constantly and exert pressure on the walls of the container and thus, when the volume of the gas decreases they come closer together and collide with the container wall and each other and thus this leads to an increase in pressure.

Work Step by Step

The Boyle's gas law defines the relationship between pressure and volume. According to this, the volume of gas is inversely proportional to its pressure at constant temperature. PV= constant. Therefore as the volume of a gas increases the pressure of the gas decreases and as the volume of a gas decreases the pressure of the gas increases. According to the kinetic theory, gas molecules collide constantly and exert pressure on the walls of the container and thus, when the volume of the gas decreases they come closer together and collide with the container wall and each other and thus this leads to an increase in pressure.
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