Question

Write a 5-10 sentence conclusion describing the changes in temperature for a solid, liquid, and gas affect the amount of energy and types of motion that each phase has and the randomness of motion. Use some of the observations to justify your conclusion.  

Answer 1

All particles have energy and the energy varies depending on the temperature which determines 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. Under conditions of constant pressure, temperature is the primary determinant of a substance's phase.

Temperature has a direct effect on whether a substance exists as a solid, liquid or gas. Generally, increasing the temperature turns solid into liquid and liquid into gas; reducing it turns gas into liquid and liquid into solid.

At low temperature, molecular motion decreases and substances have less internal energy. As temperature increases, additional heat energy is applied to the constituent parts of a solid which causes additional molecular motion.

A shift from solid to liquid which occurs at the melting point and the transition from liquid to gas which takes place at the boiling point. Conversely, the moment of change from gas to liquid is the condensation point and the shift from liquid to solid which takes place at the freezing point.

Temperature is merely a measurement of the amount of heat energy present in the surroundings. When a substance is placed in surroundings of a different temperature, then heat is exchanged between the substance and the surroundings which causing both to achieve an equilibrium temperature.