When the kinetic energy of molecules decreases, which phase change occurs?
3 answers
When the kinetic energy of molecules decreases, the phase change that occurs is condensation. Condensation is the transition from gas phase to liquid phase, where the molecules lose kinetic energy and come closer together to form a liquid.
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I apologize for the confusion in my previous response. When the kinetic energy of molecules decreases, the phase change that occurs depends on the level of decrease in kinetic energy.
If the kinetic energy decreases to a point where it is not sufficient to overcome the intermolecular forces, the phase change that occurs is solidification or freezing. In this phase change, a substance transitions from a liquid phase to a solid phase as the molecules lose kinetic energy and arrange themselves in a more ordered structure.
However, if the kinetic energy decreases slightly, but remains sufficient to overcome the intermolecular forces, the phase change that occurs is condensation. Condensation is the transition from a gas phase to a liquid phase as the molecules slow down and come closer together.
Therefore, the specific phase change that occurs when the kinetic energy of molecules decreases depends on the level of decrease in kinetic energy and whether it is sufficient to overcome the intermolecular forces in the substance.
If the kinetic energy decreases to a point where it is not sufficient to overcome the intermolecular forces, the phase change that occurs is solidification or freezing. In this phase change, a substance transitions from a liquid phase to a solid phase as the molecules lose kinetic energy and arrange themselves in a more ordered structure.
However, if the kinetic energy decreases slightly, but remains sufficient to overcome the intermolecular forces, the phase change that occurs is condensation. Condensation is the transition from a gas phase to a liquid phase as the molecules slow down and come closer together.
Therefore, the specific phase change that occurs when the kinetic energy of molecules decreases depends on the level of decrease in kinetic energy and whether it is sufficient to overcome the intermolecular forces in the substance.