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It depends on the phase change. When going from solid to liquid (melting), liquid to gas (boiling), or solid to gas (sublimation) heat is absorbed. When going from gas to liquid (condensation), liquid to solid (freezing), and gas to solid (deposition) heat is released.
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∙ 14y ago
Wiki User
∙ 11y agoeither, depending on the change
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The energy involved in a phase change is called the?
Heat associated with phase change is called Latent Heat
What A steep slope on a phase-change graph indicates?
Different
What is the energy to make a phase change?
latent heat
What is the process by which some materials take in light energy and change it into heat energy?
That is called absorption.
How do you change the state of matter?
Changing the state of matter is known as phase change, change in temperature creates phase change when the freezing or boiling point is reached.
What phase changes involve the release of heat?
The phase changes that involve a release of heat are those in which the particles move closer together. Thus, freezing is one phase change that involves a release of heat. The other such change is condensation.
The energy involved in a phase change is called the?
Heat associated with phase change is called Latent Heat
What is the best definition for thermochemistry?
the study of heat absorption and heat release (:
Is heat a phase change?
No. Heat is a form of energy.
What A steep slope on a phase-change graph indicates?
Different
When you heat liquid and it change phase it become a?
When you heat a liquid and it changes phase it becomes a solid.
Why does absorption of heat cause chemical change?
By itself it doesn't.
What contrast endothermic and exothermic changes?
Exothermic: release of heat Endothermic: absorption of heat
Do substances absorb or release heat energy as then change from a liquid to the solid phase?
When a substance changes from a liquid to a solid it releases energy. (You take the heat out)
What are 3 ways you know a chemical change has taken place?
Three signs of a chemical reaction include the release or absorption of heat, a change in color, and the creation of a gas or a precipitate.
Phase changes are not associated with a change in?
heat
How could you determine if a phase change in endothermic?
By a kinetic heat change.
