those substance that produces light and heat during burning is called combustable substance . the reaction that take place between oxygen, fuel and ignition temperature

Difference between Combustible and Combustion

Combustible and combustion are two terms that are often used in relation to fire and burning. While they are related, there is a distinct difference between the two. In this article, we will explore the meanings of combustible and combustion and highlight the key differences between them.

Combustible:
Combustible refers to a material or substance that has the ability to burn or ignite when exposed to heat or flame. Combustible materials are those that can catch fire easily and sustain combustion. These materials have a low ignition point and can release flammable vapors when heated.

Examples of Combustible Materials:
- Wood
- Paper
- Gasoline
- Propane
- Oil
- Alcohol

Combustion:
Combustion is the chemical process of burning. It occurs when a combustible material reacts with oxygen in the presence of heat or flame, resulting in the release of energy in the form of heat and light. During combustion, the combustible material undergoes a rapid oxidation reaction, breaking down into simpler chemical compounds and emitting various byproducts.

Stages of Combustion:
1. Ignition: This is the initial stage where the combustible material is exposed to a heat source, reaching its ignition temperature, and starting to burn.
2. Flame Propagation: Once ignited, the flame spreads across the surface of the material, releasing heat and light.
3. Combustion Products: As the material burns, it undergoes chemical reactions, producing combustion byproducts such as smoke, gases, and ash.
4. Extinction: The combustion process comes to an end when the combustible material is consumed completely or when the oxygen supply is depleted.

Key Differences:
1. Nature: Combustible refers to materials that have the ability to burn, while combustion is the process of burning itself.
2. Definition: Combustible is an adjective used to describe a material, whereas combustion is a noun that describes the process.
3. Usage: Combustible is used to classify materials based on their flammability, while combustion is used to describe the chemical reaction of burning.
4. Characteristics: Combustible materials have a low ignition point and can release flammable vapors, whereas combustion involves the release of energy, heat, and light during the burning process.

In summary, combustible materials are substances that can catch fire easily, whereas combustion is the chemical process of burning. Combustion occurs when a combustible material reacts with oxygen, resulting in the release of heat, light, and combustion byproducts. Understanding the difference between combustible and combustion is important in various fields, such as fire safety, chemistry, and engineering.