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Lots of things. For example:
- Water freezes (liquid->solid) at 32 degrees Fahrenheit, 0 degrees Celsius, and 273 Kelvin. These temperatures are also the melting points (solid->liquid).
- Water vaporizes (liquid->vapor) at 212 degrees Fahrenheit, 100 degrees Celsius and 373 Kelvin. This is also the condensation point (vapor->liquid). Water does not commonly form a gas, but rather a vapor which is slightly different (but really just the name of a gas that is normally a liquid).
- There is latent heat in water so you can remove energy without changing the temperature of the water (only exactly at a phase change though).
- The specific heat of water is 4.18 Joules/mole.
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What is phase change of water graph?
the water cycle
What is true for a substance undergoing a phase change?
It will change state from a solid to a liquid to a gas and finally to a plasma.
A change that occurs when a solid melts or a liquid freezes is an example of a phase change?
Solid to liquid: meltingLiquid to solid: freezing
How can the law of conservation of matter be demonstrated?
When ice melts, its mass doesn't change. It just goes through a phase change and becomes water. Again, when water evaporates, it goes through a phase change and becomes water vapor. The conservation of mass is hence proved.
Is energy required for each phase change?
Yes energy reqired during each phase change process. solid to liquid(water) = 333.7 Kj/kg liquid to vapour(water) =2257.1Kj/kg
Is it true temperature has no effect on water's phase?
It is not true.
What is a phase change example of?
When ice melts and becomes water, that is a phase change. Same when water boils and becomes steam (a gas) that is also a phase change.
What phase change causes water to evaporate?
This phase change is called evaporation.
The phase change of water to ice is called?
The phase change of water (liquid) to ice (solid) is called solidification.
What is the temperature of a substance does not change before the?
The Phase Change is complete, e.g water melting from ice phase to liquid phase or water evaporating from liquid to gas. Save
What is phase change of water graph?
the water cycle
Is the condensation of water vapor a chemical change?
A phase change is not a chemical change since the chemical remains the same; water is still water, whether it is in the solid, liquid, or gas phase.
Are phase changes in matter permanent?
No. Water freezing into ice is a good example of a "phase change". Ice can melt back into water, so we know that the phase change is not permanent!
What happen when water vapor from the hot water cools?
A change of phase; from gas phase (water vapors) to liquid phase; the phenomenon is called condensation.
Which of the following is an example of a phase change from liquid to solid?
Frost is a phase change of a gas to a solid (deposition). Water vapor turns directly to ice.
What type of change is it when water is cooled and frozen?
A Phase Change.
What kind of change occurs with freezing water?
A phase change.
