2007-09-26 12:57:07 · 8 answers · asked by tRaCi3 4 in Science & Mathematics ➔ Chemistry
well it was a question from my homework from my teacher so dont snap at me
2007-09-26 13:05:46 · update #1
The second law of thermodynamics tells us that the total amount of entropy, or disorder, in the universe is always increasing, and thus that processes tend to proceed in a way that the total disorder of the universe is increased.
Ice is the crystalline form of water. The water molecules are locked in a tight form, so they move around very little. Thus, the entropy of ice is relatively low.
By contrast, liquid water molecules are free to move around randomly. Thus, the entropy of water is significantly higher than that of ice.
Since ice melting increases entropy, while ice freezing decreases entropy, the system prefers for the ice to melt rather than for the water to freeze.
2007-09-26 13:22:26 · answer #1 · answered by Ben H 6 · 0⤊ 0⤋
If the water is at 0 deg C, and the ice is also at the same temperature in a closed system with no heat input from out side, the ice will not melt. If a controlled heat input is permitted then one can have ice at 0 deg C melting in water also at 0 deg C. This is a consequence of the latent heat of melting.
One gram of water at 0 deg C has a heat capacity of 80 calories more than 1 gram of ice at 0 deg C.
2007-09-27 04:57:59 · answer #2 · answered by A.V.R. 7 · 0⤊ 0⤋
Well it wouldn't be in different states of matter if it were the same temperature.. ice has to at least be at freezing point to be in a solid state.. once it gains heat.. that increases the temperature changing the state from a solid to a liquid. Liquid water is warmer than ice which triggers its melting into water.
2007-09-26 13:04:27 · answer #3 · answered by Sydney L. 1 · 0⤊ 0⤋
Obviously the water cannot be the same temperature as the ice. Water freezes at 32 degrees Fahrenheit so therefore the temperature of the water must be slightly above 32. If the water was below 32 then it would turn to ice.
2007-09-26 13:02:31 · answer #4 · answered by Tracy H 1 · 1⤊ 1⤋
Heat energy flows from higher to lower concentrations. A cup of ice-cold water in a normal room with ice cubes in it- the heat flows from the room, to the water, to the ice.
If the ice water was kept at the same temperature as the ice, as in a freezer or outdoors in 32F weather, then the water will quickly freeze as the heat flows from the warmer water to the colder environment.
2007-09-26 13:05:02 · answer #5 · answered by Madkins007 7 · 0⤊ 0⤋
It is not the same temperature. If the water was the same temp as the ice, the water would be ice as well. Also if it is at room temperature, the temp is constantly rising.
2007-09-26 13:01:34 · answer #6 · answered by Anonymous · 1⤊ 0⤋
if the water is the same temp as the ice then there wont be water annymore the water wouldve turned to ice already
2007-09-26 13:05:32 · answer #7 · answered by penguins.are.koo 4 · 0⤊ 0⤋
water is not the same temp as ice. That's why the water is not frozen.
2007-09-26 13:04:45 · answer #8 · answered by midnitrondavu 5 · 0⤊ 0⤋