But if you submerged the ice in ice-water -- water at or near zero degrees Celsius (or 32 degrees F) -- then the ice may melt faster in the air, especially if the air is warm and moving. How fast something melts has to do with both the nature of the surrounding medium (gas vs. liquid for instance), but also its temperature.
By the way, ice water will also chill things faster than very cold air. If you submerge a test tube of room-temperature water in an ice bath, it will coll down much more rapidly than if you had placed the test tube in the freezer, even though the freezer is colder than the ice bath. Again, this has to do with the higher heat capacity of water than air.
(That makes for an excellent, yet simple, experiment for a science fair. It's cool -- pun intended -- because it has an unexpected result.)
See the Web Links for more information about heat capacity.
[Note: I'm no physicist, but what you have here seems intuitively wrong. "Ice melts when heat is transferred AWAY from it TO its surroundings" [emphasis added]. Shouldn't the energy of the ice be increased rather than decreased (i.e. heat is transfered TO the ice FROM its surroundings)?]
=Because water is a fluid.==Air as a gas has a much lower density of particles that water, and salt as a solid has particles that are constricted in a solid crystal and cannot move around as freely as the molecules in water.==Thus, the molecules of fluid water can make contact with the ice cube surface much more often and transfer much more heat (thermal energy) per time to the ice cube than the air or salt particles can, and thus cause the ice cube to melt considerably faster.=
In hot water hopefully you know that the atom's move faster than those in cold water. So the movement of the atom's in the hotter water create more friction than those in the cold water. The more friction the more heat equals the faster the ice cube melts.
The transfer of energy from the hot water to the ice is faster than that from the warm water to the ice due to the higher temperature of the water. (The rate of energy transfer between two bodies is proportional to the difference between the temperatures of the two bodies)
water Ice takes about 1- 2 hours to melt with salt and about 5 hours with air
Sand melts ice faster because it has salt and the salt makes it melt alot faster than clay.
When Salt dissolves into water it requires energy. Some energy is consumed by the process of salt dissolution and the water stays colder (relatively) for a longer time, thus it takes longer for the ice to melt.
NO
Salt water: because salt lowers the freezing point of water, less water will freeze onto the ice cube, while the same amount of ice will dissolve into the water. This means that overall, the salt water will thaw it quicker. we recantly did a experiment in science class where there was a bucket of salt water and a bucket of fresh water (same temperatures) and in each bucket was an ice cube the ice cube in the fresh water melted faster because in salt water there are more perservatives and has more minerals therefore it is more dense and the ice will float closer to the top while the ice cube in the fresh water floats more lower. but i could be wrong
You need to determine what you think will melt the fastest, and that will be your hypothesis. If you think that pepper will melt it faster, you would say "My hypothesis is that the pepper will melt ice faster than the other variables (sand, salt, and sugar)."
Salt water will melt an ice cube faster.
An ice cube melts faster in salt water.
Salt water cubes melt fast because the salt make it give up its BTUs faster
It's because THE TEMPERATURE of the water. The higher temperature the faster melts.
yes.
No. Salt water melts faster because salt makes the freezing point lower (meaning that it makes it less frozen and the temperature higher) so it can melt faster. Why do you think people put salt on the sidewalk when it snows?
Assuming this is performed at a constant temp and pressure, it would melt faster in salt water because the Na+ and Cl- molecules can temper with the orientation of water molecules in ice more than the minerals that exist in tap water can.
Yes it does, in northern states when it snows they use ice to melt the streets.
salt
Salt would melt the ice cube faster because if you have noticed, people put down salt to melt the ice.
yes as the salt dissolves lowering the ices freezing point!!
Hot, salty water. If you put an ice cube into a boiling pot of salt water, it won't last long.