
Concept explainers
Interpretation:
By using the kinetic molecular theory of gases, the motion of the gas particles needs to be explained.
Concept Introduction:
Kinetic molecular theory is constructed on hypothesis about the behaviour of each particle in a gas. The various

Answer to Problem 4RQ
Gases consist of very small particles. These gas particles are in constant motion in different directions, striking with the walls of the container causing the pressure. The size of the particles is very much less compared to the total volume of the gas. The average kinetic energy of gas particles increases with increase in the absolute temperature.
Explanation of Solution
According to kinetic gas theory,
- Gases consist of very small particles.
- The volume occupied by the gas molecules is very much less compared to the volume of the gas.
- The particles in a gas are in constant random motion, striking with the walls of the container. The pressure exerted by the gas arises due to these collisions of particles with the walls.
- There is no force of attraction between gas particles.
- The average kinetic energy of gas particles increases with increase in the absolute temperature.
Chapter 13 Solutions
World of Chemistry
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