How is the kinetic energy of the particles of a substance affected during a phase change? Kinetic energy increases during exothermic changes and decreases during endothermic changes. Kinetic energy decreases during exothermic changes and increases during endothermic changes. Kinetic energy does not change, but the potential energy does. Kinetic energy changes in the opposite way that the potential energy changes.
The answer is the 3rd one. Active vitality trades are not changes in motor vitality. They are changes in holding vitality between the atoms. In the event that warmth is coming into a substance amid a stage change, then this vitality is utilized to break the bonds between the atoms of the substance. The illustration we will use here is ice softening into water.