Energy is related to random and nonrandom states of matter in that all matter and energy tend toward a random state. Nonrandom energy can be directed to keep matter into a desired state, but will ultimately fail.
Generally speaking, the lower the activation energy, the more successful collision between molecules will happen.
Chemical change.
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All molecules are in constant motion. Molecules of a liquid have more freedom of movement than those in a solid. Molecules in a gas have the greatest degree of motion. Heat, temperature and the motion of molecules are all related. Temperature is a measure of the average kinetic energy of the molecules in a material. Heat is the energy transferred between materials that have different temperatures. Increasing the temperature increases the translational motion of molecules Energy is related to temperature by the relationship: E= kT
This could be a long answer but simply, the more heat, the more energy the atoms/molecules have (causing more powerful vibrations in the atoms), making it easier to break the bonds between the molecules/atoms. this will change the state of the compound/element in question :)
Generally speaking, the lower the activation energy, the more successful collision between molecules will happen.
The energy must be applied to the phase change before it can heat the substance
related to the motion of molecules
The potential energy of the molecules change during a reaction.
It depends on what change this is. If this is visible change, it may not be detected. Otherwise, heat does change substances in terms of kinetic energy of molecules in a body or average distance between the molecules of the body.
In molecules, energy is stored in the bonds between the atoms.
Energy is used to do work against in separating the mutually attracive atoms or molecules from each other to change them from solid into liquid and from liquid into gaseous state.
Chemical change.
Molecular movement is directly related to temperature. As temperature increase, the additional energy is absorbed by the molecules. This energy is converted to motion energy and the molecules will move faster.
All molecules are in constant motion. Molecules of a liquid have more freedom of movement than those in a solid. Molecules in a gas have the greatest degree of motion. Heat, temperature and the motion of molecules are all related. Temperature is a measure of the average kinetic energy of the molecules in a material. Heat is the energy transferred between materials that have different temperatures. Increasing the temperature increases the translational motion of molecules Energy is related to temperature by the relationship: E= kT
The type of energy that causes a change in temperature is kinetic energy between molecules. If kinetic energy lowers between molecules then temperature lowers and vice versa.
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