When a substance changes phase, the kinetic energy of its particles changes as well. The particles of a gas, for example, have more kinetic energy than the particles of a liquid, which have more kinetic energy than the particles of a solid. The reason for this is that the particles of a gas are farther apart than the particles of a liquid, which are farther apart than the particles of a solid. The particles of a gas are also in constant motion, while the particles of a liquid are only in motion relative to each other. The particles of a solid are not in motion at all.
When a substance changes from a gas to a liquid, the average kinetic energy of the particles decreases. This is because the particles are now closer together and are only in motion relative to each other. When a substance changes from a liquid to a solid, the average kinetic energy of the particles decreases even more. This is because the particles are now even closer together and are not in motion at all.
The reason the average kinetic energy of the particles decreases during a phase change is because the potential energy of the substance increases. The potential energy of a substance is the energy that is stored in the bonds between the particles. When the particles are closer together, the bonds between them are stronger and more difficult to break. This means that it takes more energy to break the bonds and change the phase of the substance.
Other related questions:
Q: How is the kinetic energy of the particles of a substance affected during a phase change quizlet?
A: The kinetic energy of the particles of a substance is affected during a phase change by the change in their motion. The particles of a substance in a gas phase have more kinetic energy than those in a liquid or solid phase.
Q: What happens to energy during a phase change?
A: During a phase change, the molecules of a substance rearrange themselves into a new configuration. The amount of energy required to do this is called the latent heat of transformation.
Q: What happens to the heat energy of a substance during a phase change?
A: During a phase change, the heat energy of a substance is either absorbed or released.
Q: What happens to the particles in a substance during a phase change?
A: When a substance changes phase, the particles in the substance change their arrangement and energy levels. The changes in arrangement and energy levels depend on the type of phase change that is occurring.
Bibliography
- During the phase change does the average kinetic energy of …
- How is the kinetic energy of the particles of a substance …
- How is the kinetic energy of the particles of a … – Brainly.com
- Enthalpy and Phase Changes – Chemistry Quiz – Quizlet
- How is the kinetic energy of the particles of a substance …
- Clarification of Kinetic Energy during Phase Change