Question

The Kinetic Theory of Matter states that the particles that make up all matter are in perpetual motion. We know that a solid cannot change shape because its constituent particles are unable to change position. Explain how the particles that make up solid matter can be in perpetual motion if they do not change position.



Describe how the Kinetic Theory of Matter defines heat and how heat is affected by the rate of movement of the particles that make up matter.


Help Please ?

Answer 1

the KT suggest that all particles have energy, but the energy varies depending on whether the substance is a solid, liquid, or gas. Solid particles have the least amount of energy, and gas particles have the greatest amount of energy. which means that the solid particles are in motion but doesn't have much to overcome the forces among the molecules. this motion then results in the vibration and the position in the vibratory motion remains unchanged.

the total energy possessed by matter is the temperature, hence the content of heat. the rate of movement of the particles determine the total energy of the matter and in solids would result in the increase in vibration. a much greater change in the heat content would result in the phase change.

hope that helps.

Answer 2

Thanks, this did help :)