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Some Fundamental Definitions In The Science of Chemistry - Energy, Chemistry and Matter

energy, chemistry and matter

The world, in which we live in today, is full of molecules, which make it possible for us, to be able to live on the face of the earth.

If these molecules, didn’t interact with each other, in perfect harmony, many of us, wouldn’t be able to live on this planet, which is made of tangible molecules.

In today’s article, we are going to continue our conversion, on chemistry, by talking about the central theme in chemistry, and the importance of energy, in the study of matter.

The central theme of chemistry, is the understanding of the properties, of a substance, and the changes, it undergoes.

Some of the properties and behaviors of a substance, are macroscopic, meaning we can see these properties, and other properties, which we cannot see, are submicroscopic properties and behaviors.

Chemical and physical change, is differentiated, by composition, which we study macroscopically; however, the difference, is ultimately based on the composition of a matter, at the atomic scale.

The three states of matter, arise from the submicroscopic behavior, and the properties are defined, by what is manifested macroscopically.

Alright, now let’s change the tone a bit, let’s talk about energy in the study of matter.

When a substance’s energy changes, then you will usually see, a physical and chemical change of that matter.

The ability to do work, is defined as energy, and all work involves moving something, from one end to another.

When a brick moves the ground as it lands, when you lift a glass of water and when an engine, is able to move a car, work is being done.

When work is being done, energy is being passed, from the object doing the work, to the object, on which the work is being done.

The sum of potential energy and kinetic energy, is defined as the total amount of energy that, an object possesses.

The position of the object, creates the potential energy, whereas the motion of the object, creates the kinetic energy.

A fuel and its waste product, a weight lifted above the ground, two balls attached by a spring and two electrically charged particles, are all good examples, of the relationship, between potential energy and kinetic energy.

Also remember that, energy is never created nor destroyed, what happens is, one form of energy is always transformed, into another form of energy.

Although this may sound like physics, energy is very important in the study of chemistry, and we do need to have an understanding of energy, to be able to fully comprehend chemistry.

The universe, is composed of matter, which contains positive and negative charged particles; these particles attract each other and repel each other, depending on the charge of that particle, this interaction phenomenon, is known as electrostatic forces.

The potential energy of a particle, increases, when work is done, to separate, a positive particle from a negative one.

However, when the particles move together again, then the potential energy of that particle is converted, into kinetic energy.

Something similar also happens, when particles are compressed together, the potential energy increases, and when these particles are allowed to move apart, then kinetic energy is manifested.

Thank you for reading this article!!!