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# why does an energy transfer not always result in phase change?

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1.why does an energy transfer not always result in phase change?

Start studying Energy Transfer and Phase Change. Learn vocabulary, terms, and more with flashcards, games, and other study tools. … the transfer of energy as a result of contact between particles when they collide. (hit each other) … Result of change of kinetic energy of the particles of a material. temperature. A measure of how hot (or …

2.why does an energy transfer not always result in phase change?

For phase changes, there is no temperature change. Phase changes occur at a constant temperature. So to figure out the energy that must be added or removed to cause a phase change, we only need to know what the phase change is (melting/freezing, sublimating/depositing, evaporating/condensing) and the mass of water that is changing phase.

3.why does an energy transfer not always result in phase change?

Energy is required to change the phase of a substance, such as the energy to break the bonds between molecules in a block of ice so it may melt. During a phase change energy my be added or subtracted from a system, but the temperature will not change. The temperature will change only when the phase change has completed.

4.why does an energy transfer not always result in phase change?

These energy exchanges are not changes in kinetic energy. They are changes in bonding energy between the molecules. If heat is coming into a substance during a phase change, then this energy is used to break the bonds between the molecules of the substance. The example we will use here is ice melting into water.

5.why does an energy transfer not always result in phase change?

Yes, energy transfer is involved in a phase change. We know that atoms and molecules in solids and liquids are bound to each other because we know that force is required to separate them. So in a phase change from solid to liquid and liquid to gas, a force must be exerted, perhaps by collision, to separate atoms and molecules.

6.why does an energy transfer not always result in phase change?

Not at all — it just means that the equation doesn’t apply for a phase change. If you graph the heat added to a system versus the system’s temperature, the graph usually slopes upward; adding heat increases temperature.

7.why does an energy transfer not always result in phase change?

do not represent views of the Institute or the U.S. Department of Education. Developed by the Learning Design Group at the University of California, Berkeley’s Lawrence Hall of Science. Amplify. 55 Washington Street, Suite 800 Brooklyn, NY 11201 1-800-823-1969 www.amplify.com Phase Change: Titan’s Disappearing Lakes ISBN: 978-1-64482-661-4

8.why does an energy transfer not always result in phase change?

In a chemical change, a chemical reaction yields a completely new substance. A substance’s particles are changed during a chemical reaction. In a chemical reaction that causes the decomposition of a substance, energy is released. Energy is absorbed in a chemical reaction that results in the formation of a new substance. Chemical changes are not …

9.why does an energy transfer not always result in phase change?

Using the phase diagram, if you add energy to a solid or a liquid, you raise the temperature to a point where the atoms/molecules have sufficient energy to break away from each other and melt/boil. The opposite is also true; lower the temperature, will remove energy and the atoms/molecules in a gas or liquid will pack together and will thus …

10.why does an energy transfer not always result in phase change?

Why does metal expand when it’s heated? Atoms move faster, vibrate more, and spread out as energy is added. Which phase change results in the release of energy?

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 1  Thermodynamic Energy Flow Watch Video: https://www.youtube.com/watch?v=SfHHZxGpwr8

1.Heat transfer

Heat transfer is classified into various mechanisms, such as thermal conduction, thermal convection, thermal radiation, and transfer of energy by phase changes…

2.Power factor

sinusoidal line voltage. A linear load does not change the shape of the input waveform but may change the relative timing (phase) between voltage and current,…