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Energy is released.
The heat of vaporization. :D
Energy must be released-- A gas has a high amount of energy with it's atoms speeding around inside of it, a liquid has less energy, and a solid has the least. energy.
yes
Well, the most common ones would be solid to liquid; solid to gas; liquid to gas. Of course, any other valid change between the 15 or so different states of matter involve an energy absorption in one direction, and an energy emission in the opposite direction.
When a substance changes from a liquid to a gas energy is absorbed. When a substance changes from a gas to a liquid energy is released.
Condensation
It melts. Energy is absorbed.
Energy is released.
It's absorbed, thus lowering the temperature.
cchemical change and energy change also the change of a gas to a liquid
when matter changes state either evolution or absorption of enrgy occurs for example when a solid changes to liquid or a liquid changes to gas energy is absorbed and in case of conversion of gas to liquid or liquid to solid enrgy is liberated....
Released. It is called the Heat of Fusion. It is absorbed when turning from solid to liquid, and released when turning from liquid to solid.
Energy is absorbed because the iodine is going from a liquid to a gas. This means that the iodine molecules are moving faster so they had to have absorbed more energy to do this.
Yes. Carbohydrates.
Energy isn't released; It is an 'endothermic' process. It requires energy for a gas to turn into a liquid. Example: Carbon dioxide is a gas as we encounter it in everyday life. To put this gas into a liquid (or even a solid), we must add pressure to the system. Adding pressure is a form of adding energy.
Melting and boiling (vaporization) absorb energy, freezing and condensing release energy.