Question

What is a fuel? Give five examples of fuels.

Answer 1

Answer:

A fuel is a substance that can be used to produce heat at reasonable cost .

example of solid fuel: wood , charcoal, peat, and coal etc.

eamples of liquid fuel: bio diesel, hydrogen fuel, and ethanol.

examples of gaseous fuels: methane, propane, and hydrogen etc..

Answer 2

Answer:

Explanation:

The materials which burn to produce heat energy are know as fuels.

5 Examples of fuels are :

Wood,Coal,LPG, Petrol, Kerosene.

Characteristics of an ideal fuel(good fuel) are following :

1. It should high calorific value.

2.It should burn without giving out any smoke or harmful gases.

3.It should have a proper ignition temperature.

4. It should be cheap and easily available.

5.It should be easy to handle.

(c) The advantage of fuel A are :

1. It has high calorific value.

2.it has a right ignition temperature of 80 degree.

3.it doesn't produces any harmful gases.

DISADVANTAGES OF FUEL ( B)

1.it has to high calorific value and can be uneasy to handle

2.it has very low ignition temperature of 10 degree and is dangerous.

3.it produces harmful gases like CO2, CO,and SO2.