Question

What is fuel?what are the characteristics of good fuel?

Answer 1

A fuel is any material that can be made to react with other substances so that it releases energy as heat energy or to be used for work.

An Ideal fuel has following characteristics:


It is readily available,
It is less expensive,
It burns easily in air at a moderate rate,
it produces a large amount of heat,
It can transport easily
It has high calorific value, and
It does not leave behind any undesirable substances.
Unfortunately, there is no fuel that has all these qualities, and hence no fuel can be considered as an ideal fuel.

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Answer 2

$\textbf{Fuel}$:

A combustible substance which on burning produces a large amount of heat and light is called a fuel.

For example, wood, coal, LPG etc.

$\textbf{Characteristics of an }$

$\textbf{Ideal fuel }$:

1. It should be fairly cheap and easily available.

2. It should burn at moderate rate.

3. It should not produce any poisnous and irritating fumes during burning.

4. It should leave no residue (ash) after burning.

5. It should have high calorific value.

6. It should be easy to store and transport.

7. Its ignition temperature should be above room temperature.