Is Dry Ice really Hot or Cold?
474500
Dry ice is frozen carbon dioxide.  The temperature at the surface (where it is sublimating back into gas) is -79 degrees Celsius (about -109 degrees Fahrenheit).\n\nSo yeah, it's really really cold, and if you touch it for too long the tissue damage it creates feels almost exactly like a burn.
419356
I will take a stab at it.  I am guessing it is because water has more degrees of freedom.  In the liquid there is also rotational degrees of freedom to absorb energy that the solid ice does not have.\n\nTo Neil, the formulas are for heat capacity and have nothing to do with the way something is heated, only the amount of energy that it takes.\n\nNor does it have anything to do with Newton's law of cooling.
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).
104966
Depends on how hot or cold
751584
My parents used to say this stinks on "dry" ice.  I guess that was back in the old days.  LOL.  I am curious now too.  What does it mean?
810306
definetly cold. The best is cold pizza for breakfast. Yum!
49651
Sorry freak...not nitrogen...frozen carbon dioxide is commonly referred to as "dry ice". And no way is it water in any sense.\n\nThanks Roscoe.
80193
Mine's gotta be ice - I absolutely love the cold! Fire doesn't really appeal to me (I hate the heat - even from a warm oven, or a burning fireplace). Besides, ice can be scuplted into different shapes (which just proves how incredibly versatile it is).\n\nFire on the other hand is just a flame licking all over the place, burning with passion and searing with heat.\n\nThat of course, is not to say that I'm a cold hearted guy with an icy stare. I just like the ice... =p
469919
Sounds like a trick question. In the north we know that putting salt on ice makes it melt. In the arctic regions only the salty sea water is still water. The ice and snow are actually fresh water. Salt lowers the temperature that water freezes at. However, if you can freeze dry the salt it will separate from the water. This is the method that's used to filter Ice Beer. So technically you could if done right but just freezing it is a difficult process because you'll need something very very cold as a coolant. This would be a good series of experiments if you can get someone that can handle dry ice (frozen C02).
183968
when i was in 3rd grade i did onw on what freezes faster.... hot cold or salt water. actually got frist prize in the school science fair and 2 in district
638067
Nitrogen\nAcetone chilled with dry ice (CO2)
685755
Ice water.  Ice is the solid phase and the water is the liquid phase.
596774
dry ice in water will simulate a boiling effect as the ICE returns to gas .If you are camping in an ice region a can of sterno and calapseable stove wont melt ice and an aluminum pan heats water very fast and efficiently .but if I am not hitting the mark it's due to the lack of info in the querry given .
767956
Carbon dioxide liquefies/boiles at -57°C and solidifies/melts at -78 °C . People use these carbon dioxide properties, to test other properties. One such  test is impact testing of metals, at low temperature.  \n\nSolidified/Solid carbon dioxide is called dry-ice.  The  test using solid carbon dioxide is called  dry-ice test.
1105001
I know you want to avoid icy cold drinks when its hot, because your body may reject them.  Especially if you are working out or dehydrated, its better to drink room temperature or only slightly cool water.  But hot drinks dont sound that good for you either.
733688
150 degrees\nbut it's a dry heat
894637
Dry ice (CO2) dissociates - ie makes a transition from solid to gas. Remember that state change is potential energy in the atom, and temperature change is kinetic? Sublimation is only potential.\n\nWater makes the change to liquid (potential), then heats up (kinetic), then changes to gas (potential).\n\nDo your own homework.