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Sublimation is an endothermic physical change (heat is needed).

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12y ago

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Heat being added or taken away from a substance may cause?

more or less heat


What must be added or taken away for a change in the state of matter to occur?

I believe "heat"To change from one state of matter to another state of matter heat is added or taken away.I think that makes sense!


Is heat taken away or added in evaporation?

Heat is taken away during evaporation. As the liquid absorbs heat from its surroundings and gains energy, some of the molecules at the surface of the liquid gain enough energy to overcome the intermolecular forces holding them together, and they escape into the gas phase. This process removes heat from the remaining liquid, causing it to cool down.


What is solid to a gas and is heat added or removed?

Of course heat is added because you are turning solid which is like ice to gas which is water vapour !!


What has to be taken away to turn ice into water?

heat


What are affected by an increase in intermolecular forces?

Capillary attraction, Melting point, Heat of vaporization Sublimation temperature, Surface tension, Vapor pressure, Heat of fusion Boiling point, Viscosity, Density, Heat of sublimation Apex: Boiling point, viscosity, heat of sublimation, density.


What happens to water when heat is taken away?

It becomes cold.


When heat is taken away what happens to the speed of the molecule?

It slows.


What is the process by which the earth's atmosphere absorbs heat?

sublimation


What is the process by which the earth atmosphere absorbs heat?

sublimation


When heat is taken away from something what happens to the mercury in the thermometer?

It contracts.


When heat is taken away from water it changes from a liquid to what?

Water changes to a solid, ice, when heat is taken away from it. You can think of putting water into the freezer. Since the freezer is cold, heat flows out of the water making it become ice cubes.