Living by Chemistry
2nd Edition
ISBN: 9781464142314
Author: Angelica M. Stacy
Publisher: W. H. Freeman
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Question
Chapter U3, Problem C10.2RE
Interpretation Introduction
Interpretation : Using kinetic theory of gases, temperature has to be explained.
Concept Introduction : Solids, liquids and gases have different arrangement of atoms and molecules. In solids and liquids they are held close together by intermolecular forces. Molecules in gases are far apart as there are no forces between molecules in a gas.
Expert Solution & Answer
Answer to Problem C10.2RE
According to kinetic theory of gases, the gas particles are in constant motion. These particles are not moving in the same speed. They strike the walls of the container and also collide with each other. The temperature of a gas is a measure of the average kinetic energy of the gas particles.
Explanation of Solution
In order to explain the properties of gases such as motions of gas particles, scientists have proposed a model called kinetic theory of gases. This model proposes that the gas particles are in constant motion.They strike the walls of the container and also collide with each other.The theory also explains that not all gas particles move at the same speed. This theory focuses on average speed for all particles at a given temperature. Due to the average speed, the particles have kinetic energy. The temperature of a gas is a measure of the average kinetic energy of the gas particles.
When the temperature increases, the average speed of the particles also increase.
Conclusion
Temperature is a measure of the average speed of the atoms or molecules in a sample.
Chapter U3 Solutions
Living by Chemistry
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