Kinetic Molecular Theory Of Gases
Chapter Name : States Of Matter |
Sub Topic Code : 102_11_05_08_01 |
Topic Name : Kinetic Molecular Theory Of Gases |
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Sub Topic Name : Kinetic Molecular Thyeory Of Gases |
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Introduction
The kinetic molecular theory of gases tries to explain the behavior of gases clearly at the microscopic level: 1. Gases are made of tiny particles far apart relative to their size. 2. Gas particles are in continuous, rapid, random motion. 3. There are no attractive forces between molecules under normal conditions of temperature and pressure. 4. All collisions between gas particles and between particles and container walls are elastic collisions. 5. At any particular time, different particles in the gas have different speeds and therefore different kinetic energies.
Pre-Requisites:
Partial pressure, volume, gas, temperature,
Activity:
LPG gas in the cylinders and gases in the fire extinguishers are compressed gases.
Real Life Question:
How do gases become compressible?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Elastic collision | Elastic collisions are collisions in which there is no net loss of total kinetic energy. |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Can of coke | If you heat up a can of coke on a flame. Be very careful and do not attempt it in the kitchen. |
Real life uses :
LPG gas for cooking.
Places to visit :
kitchen
Practical examples around us
| Examples | Explainations |
|---|---|
| Compressed gases | Compressed gases in the cylinder and fire extinguishers are used in every household. |
What you learn in Theory:
Ideal gases have a few features described in the kinetic molecular theory of gases.
What you learn in Practice:
Volume occupied by the molecules is negligible. Explains why gases are compressible.