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When water is heated the http://wiki.answers.com/q7649733.htmlmove faster and faster causing water to boil and become a gas steam. When you take Answers.com away or cool water its molecules slow down and the water freezes or it becomes a solid.
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Water changes phases when heat is added or subtracted?
Boiling and melting are endothermic. Freezing is exothermic.
What are the three phases of water How does water change from one phase to another?
The three phases of water are, liquid, solid and gas. Water changes from liquid to solid by Freezing. It changes from liquid to gas by Evaporation. It changes from solid to gas by Sublimation. It changes from solid to liquid by Melting. It changes from gas to liquid by Condensation.
When you heat a liquid it changes phases it becomes a what?
gas
What is exchanged when water changes from one phase to another?
When water changes phases (solid, liquid, gas), energy is exchanged in the form of heat. For example, when water vapor condenses into liquid water, it releases heat into the surroundings; when liquid water freezes into ice, it absorbs heat from the surroundings.
Which two phases of the water cycle are repeated?
The two phases of the water cycle that are repeated are evaporation and condensation. Evaporation occurs when water changes from liquid to vapor, typically due to heat, and condensation is when water vapor changes back into liquid form to become clouds or fog. This cycle of evaporation and condensation repeats continuously in the water cycle.
How does heat change the state if matter?
For example heating lead to melting and boiling - changes of matter phases.
When ice changes phases from solid to liquid energy is required Where does it come from?
Ice changes into water when some heat is involved. The heat energy is used as latent heat to change its state from solid to liquid but note that the temperature remains the same. This is can be seen by fixing an experimetn. Fill a beaker with ice and attach it with thermometer. Start heating it. Look at the temperature at the first and at the end when it is in liquid state. It remains same (0 degree celcius)
Why heat is needed to boil water?
Because heat changes the temperature of the water
What are the ways that heat takes part in a chemical changes?
Heat can be involved in a chemical reaction that is endothermic(absorbs heat) or that is exothermic(releases heat)
Is heat absorbed when you mix baking powder and water?
No, no heat is involved when mixing baking powder and water.
How is heat involved in chemical changes?
Heat increases the speed at which the molecules move, thus increasing the speed of the reaction.
Why the heat capacity of water more than ice?
Water can hold more heat than ice before it changes states. For example, when you add heat to ice, it changes to water almost immediately. When you add heat to water it takes more to turn it into steam.
