Kinetic theory is a description of the properties of atomic particles in different states such as solids, liquids, and gases. In the various states the atoms have a different energy level and the movements of the particles also include distance. Say no to plagiarism. Get a tailor-made essay on "Why Violent Video Games Shouldn't Be Banned"? Get an original essay The state of the sample, for example water, can be changed through the change in temperature. This is because energy is applied into the atoms causing the changes. Observations such as volume, temperature and pressure can be measured. Atoms become stronger to break when they are close together since they have intermolecular attractive forces. Atoms in the solid state are limited and have no room to move freely. In the solid state maximum energy is needed to break the intermolecular force, this is because the atoms are close together and the attraction is strong enough to remain in a fixed position. Since there is no space between the particles, it cannot be compressed, meaning it cannot become smaller than it is. Particles have no room to move so if energy is applied it has to start small. So, if energy is applied due to the narrow space, the atoms start to vibrate next to its neighbors in the same regular position. For the state to change more energy is needed, which means the temperature must be increased. The vibration of the atoms becomes stronger as the thermal energy is transferred into kinetic energy which breaks down the structure of the atoms. The solid begins to change shape into a liquid which is called fusion as the intermolecular forces break down and become weaker. Depending on the solidified substance, for example, the reaction speed varies. Atoms in the liquid state can now move freely and collide with each other within the volume of the container due to the increase in kinetic energy. The intermolecular force is weaker than the previous state but still holds the atoms together in the liquid substance. In the liquid state it can be compressed, decreasing the energy since they are not tightly joined compared to the solidified state. If the liquid state decreases in temperature and becomes solid, the reaction is called freezing. This is the time when the particles lose energy, meaning they will stop moving and will be in a stable arrangement. As the temperature drops, it loses energy and the intermolecular force pulls the atoms together. Before the gas is formed, the evaporation of the liquid begins. It occurs when different atoms have different energy levels and are able to escape from the liquid solution/container to form gas, such as water, which evaporates into the air. The molecules have enough energy to break the intermolecular between them. During evaporation, heat is constantly supplied as heat (high energy molecules) is released from the liquid to the air, meaning the liquid cools. Evaporation occurs on the surface of the liquid and can depend on the substance and the situation. For example, if the surface area of ​​the liquid substance is large, the rate of evaporation increases as the probability of particles escaping increases. Please note: this is just a sample. Get a custom paper from our expert writers now. Get a custom essay atoms in the gaseous state move completely freely without any restrictions, which means their distance from previous states is the furthest. There is no force of attraction between them and they are highly energetic atoms due to the increase in temperature. To become liquid, we must.