how to boil water without melting ice?
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 .
606548
Absolute zero.  There are ways to keep water from freezing using pressure, motion, impurities, and so forth.
881168
Use the fire to heat water in a container to boiling. Pipe it to a steam driven compressor to compress refrigerent to cool the ice chest. Don't forget the condenser, evaporator and expansion valve.
794159
Dip a glass rod in distilled water so that it is wet.  Dip the rod in the dewar flask and take it out after a few seconds.\n\nMeasure where the ice forms on the rod.  Make sure the rod is clean and you use distilled water so you don't contaminate the He.
253095
Did you try boiling water?
55129
The heat required can be divided into 5 parts:\n1. Heat required to race the temperature to the melting point.\n2. Heat required to melt the ice.\n3. Heat required to raise the water to the boiling point.\n4. Heat required to change the water to steam.\n5. Heat required to raise the temperature of the steam to the final value.\n\nCompute part 1 using the specific heat of ice.\nCompute part 2 using the heat of fusion.\nCompute part 3 using the specific heat of water.\nCompute part 4 using the heat of vaporization.\nCompute part 5 using the specific heat of steam.\n\nYou can do the math, after all it is your homework assignment.
345993
Although adding salt to water will raise the boiling point, you will need to add a lot of salt.  If this is water that will be used for cooking anything, it will ruin it.  For example, to raise the boiling temperature 1/2 degree celsius, requires 1/4 Cup of Salt!\n\nWhen a pot is boiling over, just turn down the heat or remove it from heat.  You could add some salt, which will change the vapor pressure and slow down the boiling process, but it takes a lot.
165249
Definitely. After all, water vapor is just the gaseous form of water, and you can heat that quite a bit more. \n\nHowever, I presume you are referring to the liquid form of water. The previous answer is definitely correct. All one has to do is increase the pressure and the liquid water will stop boiling and get hotter.
578593
usually a bag of ice cubes should work and should not turn warm, though it may turn somewhat watery. but when that happens, just switch to another bag. That's what i do all the time and obviously don't do it a place where it can get hot. haha
194492
Salt raises the boiling point of the water. So if you add salt to the water, water boils at a higher temperature than 100C and cooks the pasta faster. It is the same procedure for the roads. Salt lowers freezing point of the water, so ice freezes at a temperature lower than 0C. If it is -5C outside the water doesn't freeze so the roads don't become slippery because of ice. Also this principle is used in the cars, i.e. antifreeze liquid.
776438
Dont know if this is relevant to your question, but I know water can boil at this temp range if pressure is reduced enough.
150195
at sea level water boils at 100 deg C\nat elevation like up a mountain it will boil at a lower temp because the pressure is lower. I think water boils at about 70 deg C on everest.
863405
To get the water in a microwave to go above 100C, you need to prevent it from boiling. The process of boiling takes up the heat required to raise its temperature.\n\nTo do this, you need distilled or deionized water (removing impurities/particles makes it harder for water to boil). When you microwave the water, it is possible to get it past 100C without causing the water to boil.\n\nBe careful when you do this however, the slightest agitation to the superheated water will cause it to EXPLODE and scald whatever it touches.
64882
Water's boiling point is 100 degrees Celcious (212 Fahrenheit), at zero altitude. Altitude can change the boiling point for water.\n\nYou can calculate that if you know your altitude, by following the link provided below.
240544
Absolutely, yes.  PURIFIED water can become super-heated in the microwave -- that is, above boiling temperature but not actually boiling.  Tap water has minute particle in it that will facilitate the normal boiling process. Purified water does not, or it doesn't have enough.  When the surface is broken with a fork or spoon, for example, the built-up heat energy (that should have been causing the water to boil) will then pop causing the water to explode out of the container.
715196
distill\n\nboil liquid, and cool the steam.
67994
Narrow it to surface tension. 1. Sprinkle on wax paper and drag drops using toothpick. 2. Overfill a shotglass. 3. (my favorite)  get a flashlight , small bowl of water and an eyedropper of common rubbing alchohol.  Shine the light on the surface of the bowl of water and from about 1/2 inch, drip in the alchohol.  It will appear to boil!