Gases and liquids are called fluids.Due to the kinetic energy of the atoms/molecules of the fluids they vibrate hence result in a contant mixing or motion of the molecules.
Experiments which prove the motion-Brownian motion,Smoke cell
diffusion
The solid state has the least molecular motion.
The Kinetic Molecular theory is used to describe the behavior of gas. It gives the relationship between pressure, temperature and kinetic energy.
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
When water goes solid (freezes), the molecules get "locked" together to form the solid phase. These molecules can't move around like they can in liquid water because they are interconnected and immobile within the lattice. Most solids exhibit the property of atomic or molecular immobility, though is it is possible for some materials to diffuse into or out of a solid structure.
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.
Dissolving is when a substance has mixed into a solvent.
diffusion
the motion of the molecules would slow down
The solid state has the least molecular motion.
As temperature of a solid is increased, molecular motion increases.Since, temperature of a solid is directly proportional to average vibrational kinetic energy of molecules of a solid, therefore, energy of a solid increases with an increase in temperature. So, it demonstrates that molecular motion is directly proportional to energy i.e. the higher the energy of solid, the higher is the molecular motion.
Liquid water molecules exhibit a greater amount of motion than ice molecules.
Molecular motion is less constrained in liquid than in solid and is less constrained in gas than in liquid.
It is not known and, thanks to Brownian motion, it cannot be known.
the mixing of gas molecules due to random motion-apex
the mixing of gas molecules due to random motion-apex
No molecular motion only ceases when the temperature is at absolute zero. The molecules have retained their kinetic energy although they are at equillibrium.
the mixing of gas molecules due to random motion-apex