Write 15 pages thesis on the topic energy and work. The unit of work, and in turn energy, in SI is Joule or Nm. 1 Joule is defined as the amount of energy used when a force of 1 N moves a system throu

Write 15 pages thesis on the topic energy and work. The unit of work, and in turn energy, in SI is Joule or Nm. 1 Joule is defined as the amount of energy used when a force of 1 N moves a system through a distance of 1 m.

It is important to note that in doing work, the body doing the work transfers the Energy to the body on which work is done. For example, when we throw a ball, a certain amount of energy has been imparted to the ball. Similarly, when water stored in a reservoir falls on a waterwheel, the Energy stored in water is transferred, and the wheel starts to turn. This leads us to the critical Law of Conservation of Energy, which state that:

The total amount of energy in a system remains constant over time, or it is conserved. It can change its form but can neither be created nor destroyed.

Energy has different forms, which include Potential Energy (based on the position of the system), kinetic (based on the motion), chemical energy (based on composition), and nuclear energy. &nbsp.

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The most common form of energy we use in our daily lives is heated. Heat energy is released when we burn coal, wood, natural gas, and gasoline. That is, the Chemical Energy stored in these materials is released in the process of combustion and is available to us for work. These materials are referred to as Hydrocarbon fuels, Fossil Fuels, or only Fuels.

At the basic chemical level, these materials consist of carbon and hydrogen. In combustion, these react with the atmospheric oxygen producing carbon oxides (monoxide and dioxides) and significant heat energy.

Coal

Coal is the oldest and perhaps the most abundantly used fuel in the history of humanity. It is a fossil fuel, and it is formed from vast amounts of organic material buried under soil and rock over time due to natural events like floods. As time passed, the overburden (and the pressure) due to earth continued to increase, and in an atmosphere lacking oxygen, the organic matter converted to coal.

It is important to note that the plant matter had depended on the sun as a source of energy until it was buried. Hence, it can be argued that the original or primary source of Energy was from the sun itself.