Gas is one of the three states of matter. The gas state is composed of a group of molecules that move freely, independently of each other. Certain properties define the gas and separate the state of matter from the two other states: solid and liquid. Many different energies, forces, and quantities greatly affect the behavior of any type of gas. These differences consist of pressure, temperature, volume and even the number of molecules of a gaseous element. There is a mathematical relationship between all of these properties that affects all properties when just one is changed. Theories that explain this relationship between properties are known as Boyle's and Charles's laws. Kinetic molecular theory, which clarifies how kinetic energy creates the motion of gas molecules, is one of the major theories about gases. And finally, the ideal gas law, which explains the amount of gas used in a chemical reaction. The ideal gas law calculates the ratio of all elements in a chemical reaction and helps discover the quantities of gases or gases that will be used in the reaction, usually expressed as a linear equation. Gases have certain properties that define and distinguish them from the other two states of matter. The atoms of a gas are generally far apart and are not affected by the presence of other molecules nearby. They are neither attracted nor repelled by other gas particles. Molecules are constantly moving at extremely fast speeds and do not bend in the direction they are going. When gas molecules collide, they do not stick together; however, they will simply bounce off each other and continue on a new path. When gases are placed in any sort of cont...... middle of paper ...... gas particles and molecules, which help define the gas. If there is more volume in a container, the gas will expand to fill the entire size of the container. All properties of gases add some complication to the subject, and there are many formulas, laws, theories, and hypotheses that help uncover any unknown information about gas, including laws such as Boyle's law, which compares pressure to volume, Charles' law, which compares temperature to volume, and Avogadro's hypothesis, which compares volume to the quantity of gas. Kinetic molecular theory is the theory of how the movement of molecules works and how they are powered. It was created and improved throughout history, until the 20th century. The ideal gas law is the connector to the chemical reaction part of gases. Essentially, gases are full of equations, concepts and properties