What happens to heat energy absored in melting ice?
613595
It breaks the hydrogen bonds between water molecules to aid in the melting process. Since this energy is used to break bonds, it can't heat the ice.
328951
The latent heat of fusion for water is 335 Joules per gram. so thats exactly how many joules of energy you need to melt one gram of ice
30155
Thermal energy is the energy due to a temperature difference. Think of a glass of ice water in a warm room. Thermal energy goes from the room to the ice and melts it. Always from Hot to Cold.\n\nCar radiators use it to move heat away from the engine.\n\nAir conditioners.
559672
The corect answer is 1) - Its molecules speed up.\nmany times the temperature also rises but not always.\nThink of when you heat ice up. At some point the ice turns to water but does not heat up until all the ice is converted.\n\nI hope you are doing your own homework, not using yahoo as a crutch.
284203
Ice lowers the melting point of water, so it causes the ice to turn to liquid water and break up.  If it's *really* cold, this doesn't help.
718611
The soda has more heat than the ice.  Heat energy travels from areas of greater heat to lesser heat.  The heat energy in the soda leaves the soda to go to the ice which in turn melts the ice, and leaves behind a cooler soda.\n\nHeat moves....cold doesn't.
1159475
Liquid-Gas... water evaporating.  As energy (heat) is added to water molecules, they begin to move more rapidly and break apart from each other with more ease.  They are then able to become completely separate to the point that they can float up into the atmosphere.\n\nLiquid-Solid... water freezing.  As energy (heat) is removed from water molecules, the binding together of two water molecules becomes more frequent.  At water's freezing temperature, the water molecules become binded together so that they are stuck together and don't move nearly as much (they still vibrate, though).
656503
It doesn't.  Ice melts more slowly on a colder surface because when ice melts it must draw heat from the surrounding environment, and when there is less heat available it takes longer.\n\n____________\nEdit: as a college science major, I can tell you it simply doesn't work that way.  However, there are a number of factors besides temperature that effect ice melting.  For example, if the piece of ice on the colder block was considerably thinner than the ice on the warmer block the one on the colder block might still melt faster.  In biology, we sometimes melt small amounts of liquid on ice because bad things happen if they get too warm, and two microliters of frozen liquid on ice generally melts faster than ten mililiters in warm (about 98˚F) water.\n\nAnother factor that effects melting point is solutes dissolved in the water before it was frozen.  Salt water freezes at a lower temperature, and consequently melts at a lower temperature, than pure water (that's why the salt the roads in the winter).  If there were a lot of salt dissolved in the piece of ice on the cold block, then depending on the temperatures of the two blocks, the one on the cold block might melt faster.\n\nIt's also possible that one or both pieces of ice weren't water at all.  There are plenty of clear liquids out there that melt at various temperatures.  A compound with a lower freezing point will tend to melt faster, possibly even at a lower temperature.\n\nAnother factor is the starting temperature of the ice.  In one of the biology labs at my school we have a freezer that's at -80˚C, and the normal ones at 4˚C.  If you take a piece of ice out of the -80˚C freezer and one out of the 4˚C freezer, they're both frozen, so they're both ice, but the one at -80 is a lot colder, and is going to take a lot longer to melt, even at a warmer temperature, because it has to warm back up to 0˚C before it can even start to melt.\n\nBut, of course, the obvious explanation is that either your teacher lied to you, or you lost track of which block was which at some point in the demo.
937218
ice is converted to water and water to gas.
546552
It is called latent heat or the amount of heat required to change phases.  The latent heat of vaporization is usually much great than that of freezing.\n\nEach chemical or molecule has a different latent heat to change from liquid to gas.  It is also interesting that when water vapor condenses into liquid water, it gives off the exact same amount of energy that it took to boil it.\n\nNow think of dry ice (frozen carbon dioxide).  It goes straight from solid to gas (sublimation) and think about how much of a kick (freezing power) it has.
862439
The steam.  It would have to go through a phase change and give up a bunch of energy to turn back into water at 100.  Assuming you mean equal mass of water and steam. \n\nSame question for ice.  How much energy does it take to melt 1 Kg of ice at 0 to water at 0?
819865
Conservation of energy.\n\nCalculate the amount of heat stored in the 28ºC water using 0ºC as the starting point.  This energy must first melt the ice, for which you'll need to use the heat of fusion of water.  The remainder of the energy will warm up the entire amount of water.
1007966
yes, the mass of water/ice does not change during a phase change, only the density and thus the volume. Law of Conservation of Matter.
27210
im not sure of the exact curve.  but i know you have take in account the heat of fusion (the energy it takes to convert ice to liquid water, where the temperature stays the same, 0 degrees celsius, even though energy is being added)  and the heat of vaporization (the energy it takes to convert liquid water into steam, where the temperature remains the same, 100 degrees celsius, even though energy is being added)
53097
well, ice is solid, water is liquid, and air is gas, and the potential energy increases as the stages change.  in other words, air is the warmest, water next, and ice last.  air being the warmest will warm up the ice faster and therefore melt it quicker.\n\nthe only reason that i can see why it'd be in water is if there's been a sudden change in temperature and the water is still warm but the air is cooler (cold front after a week of mid 60s or 70s weather).
575202
heat is a form of energy.
596957
I understand you assume energy can be produced from heat. You are correct, however don't forget that -24 Celsius is also a "level" of heat energy (temperature in better words). In case you can find a substance that will expand substantially under -2 degree celsius. Then when you store this substance in arctic conditions, it will become pressurized and that pressure can easily be used in for example turning some turbine blades. Any kind of energy can be converted into any other type of energy, given necessary technology...