Question

define the term 'fuel'​

Answer 1

Answer:

(Entry 1 of 2) 1a : a material used to produce heat or power by burning. b : nutritive material. c : a material from which atomic energy can be liberated especially in a reactor.

Answer 2

$\text{\color{blue}{\underline{ \: Fuel is any substance that can provide}}} \\ \text{\color{blue}{\underline{heat \: \: and \: \: produce \: energy \: \: when \: it \: \: \: is}}} \\ \text{\color{blue}{\underline{burned. \: \: This \: \: energy \: that \: \: releases \: \: is}}} \\ \text{\color{blue}{\underline{generally in the form of chemical energy}}} \\ \text{\color{blue}{\underline{or heat \: energy. \: \: The \: oil \: which \: is \: used}}} \\ \text{\color{blue}{\underline{to as fuel \: in the engine is known as Fuel}}} \\ \text{\color{blue}{\underline{oil.}}}$

$\Large\textbf\red{\underline{Examples of Fuel}} \\ \text{1. \pink{Methanol \: \: \: }} \\ \text{2. \green{Gasoline \: \: \: \: \: }} \\ \text{3. \orange{Diesel \: \: \: \: \: \: \: \: \: \: \: }} \\ \text{4. {\color{blue}{Natural gas}}} \\ \text{5. {\color{purple}{Hydrogen \: \: }}} \\ \text{6. {\color{yellow}{Biodiesel \: \: \: }}}$

Types of Fuel

Solid Fuel

These are solid materials that combust to produce energy. Some examples of Solid fuel are coal, charcoal, soot, wood etc. These were most likely the first fuels utilized by mankind.

Liquid Fuel

These are the fuels we burn to produce mechanical energy and kinetic energy. These fuels are easy to transport and relatively easy to use.

Fuel Gas

Fuel Gas as the name suggests are fuels that are in a gaseous state under normal conditions. Some examples are methane, carbon monoxide, propane etc. They have an advantage that they can be easily transported to the place of consumption. However, they also tend to leak from pipes and every precaution must be taken to avoid this. The best example would be the CNG gas that comes to your kitchen via pipes that you utilize for cooking. This is also known as Domestic fuel.

Biofuel

Biofuel can be solid, liquid or a gas. The only condition is that it must be derived from Biomass. So essentially it is fuel derived from living matter that can be replenished. One such example is ethanol made from sugarcane wastes.

Fossil Fuel

These are conventional fuels. They are also non-replenishable. They have formed over thousands of years in the earth’s core where fossilized remains of animals and plants have been exposed to high pressure and temperatures. These are fast depleting and our dependence on them is a major concern for all of humanity.