Combustion Quiz

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Questions and Answers

What is combustion?

Combustion is a chemical process in which a substance reacts with oxygen to give off heat and light.

Give an example of a combustible substance.

Wood is an example of a combustible substance.

Provide an example of a non-combustible substance.

Sand is an example of a non-combustible substance.

What is fuel in the context of combustion?

<p>Fuel is any substance that, upon combustion, produces a usable amount of energy.</p> Signup and view all the answers

Define ignition temperature.

<p>Ignition temperature is the lowest temperature at which a combustible substance catches fire when heated in air.</p> Signup and view all the answers

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Study Notes

Combustion

Combustion is a chemical process where a substance reacts with oxygen to produce heat and light.
Burning of wood is an example of combustion.

Combustible and Non-Combustible Substances

Combustible substances are those that easily catch fire, such as paper, coal, and wood.
Non-combustible substances are those that do not catch fire readily, such as sand, water, and glass.

Fuel

Fuel is a substance that produces a usable amount of energy upon combustion.
Examples of fuels include fossil fuels, biogas, and nuclear energy.
Fuels can exist in solid, liquid, or gas states, depending on their physical form.
Fuels can be either natural or artificial, based on their occurrence.

Ignition Temperature

Ignition temperature is the lowest temperature at which a combustible substance catches fire when heated in air.
It is a specific temperature unique to each combustible substance.