Condensation
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.
These are phase changes - All the energy that is added at this time is used to change the phase of the substance.
The heat energy, or enthalpy, associated with a solid to liquid transition is the enthalpy of fusion and that associated with a solid to gas transition is the enthalpy of sublimation.
Evaporation and condensation
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Gas to liquid change releases energy.
Based on chemical properties exothermic phase changes are those that release energy. The exothermic phase changes are gas--> liquid, liquid --> solid, and gas--> solid. Looking at a phase diagram if you are going up the "stairs" the conversions require energy going down the "stairs" energy is released.
Phase changes requiring the addition of heat energy are the phase changes from solid to liquid, liquid to gas, and solid to gas. These phase changes are termed melting (solid to liquid), evaporation (liquid to gas), and sublimation (solid to gas).
When a substance changes from a liquid to a solid it releases energy. (You take the heat out)
a great amount of water vaptor change phase to become liquid water droplets in the clouds that form a thunderstorm. does this phase change release or absord energy? how do you know
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.
It is converted to bond energy
Liquid to solid
Heat energy changes.
Bond formation most often releases energy. but if other reactions or phase changes that release energy occur at the same time, bond formation can absorb energy.
It doesn't change notwithstanding heat energy changes.
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