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The energy required is the same. It is the energy required to rearrange the molecules from one state to another.
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When you freeze water and it expands does it melt more water than before?
No. Under controlled circumstances, when you freeze 1 measure of water, it expands to about 1 and 1/10th of a measure. When melted, it will once again equal 1 measure of water.
How does the temperature of water affect the time it tackes to freeze into ice cubes?
Temperature affects the time it takes to freeze water because hot water will freeze slower than cold water because it has more thermal energy. I hope I answerd your question!
Why doesn't the sea freeze or the ice melt?
Moving water distributes heat energy among more molecules, and the loss of heat from the water's surface must be to a cooling medium below 32°F /0° C. Underground rock is usually not that cold. Ground water may also be heated by geothermal sources.
Is the molecule gaining or losing energy when an ice cube melts into water?
Think of it this way: When water is frozen the molecules are barely moving, that's why it's a solid. When it starts to melt, the particles pick up speed( they're moving faster), so the ice is absorbing energy ( in the form of heat ). This is known as an endothermic reaction.
Why does it take more heat to boil a substance than to melt it?
The energy required to completely separate the molecules in a liquid and convert them to a gas (boiling), is greater than the energy needed to completely separate the molecules in a solid and convert them to a liquid (melting).
Does water require energy?
If you take energy in the form of heat, from water it will freeze and so is not water any more.
Does hot water melt cold things faster than cold water?
Of course. When something is hotter than something else, it means it has more energy, which also means it's particles are moving more. The particles of the water will bump into whatever your trying to melt and give it some of the particle's energy, which hopefully will be enough make it become a liquid as well. The hotter the water the more energy it has, and the more quickly it can melt "things".
Why moving water does not freeze?
beacuse the molecuels in moving water are have more kinetic energy and they moves randomly in all direction hence it can't freeze
When you freeze water and it expands does it melt more water than before?
No. Under controlled circumstances, when you freeze 1 measure of water, it expands to about 1 and 1/10th of a measure. When melted, it will once again equal 1 measure of water.
Why does water melt ice?
Water is "warmer" than ice. Or, to be more precise, liquid water contains more heat energy than solid water.
What happens if energy is added or taken away from a glass of ice water?
That depends on how much energy, but simply:added, more ice melts to water - if enough is added all the ice will melt and the temperature risestaken away, more water freezes to ice - if enough is taken away all the water wii freeze and the temperature will dropAs long as there is both ice and water the temperature will hold constant.
How does the temperature of water affect the time it tackes to freeze into ice cubes?
Temperature affects the time it takes to freeze water because hot water will freeze slower than cold water because it has more thermal energy. I hope I answerd your question!
After applying salt to melt ice on walkway after the ice melts will it re-freeze?
Ice lowers the freezing point of the water. so the ice will not re freeze unless the temperature drops even more.
Why doesn't the sea freeze or the ice melt?
Moving water distributes heat energy among more molecules, and the loss of heat from the water's surface must be to a cooling medium below 32°F /0° C. Underground rock is usually not that cold. Ground water may also be heated by geothermal sources.
An ice cube melts when mechanical energy increases?
An ice cube will melt when it is above the freezing point of water. At this point the individual molecules have enough energy to vibrate more causing the ice cube to melt.
Why does an ice cube melt faster in water or in the air?
For air and water at the same temperature, the water hold the most energy per volume and can therefore deliver more energy towards the melting of the ice.
Why do snowmen melt with salt on it?
When mixed with water, salt (and many other minerals, for that matter) lowers the temperature required for it to freeze. The more salt, the lower the temp needs to be.
