what temperture is boiling water?
454506
100 degrees celcius\n212 degrees Fahrenheit
897076
Yes.  It also boils at a lower temp.
734492
Heat = mass x specific heat of material x change of temperature.\nSpecific heat of water is 1. So the amount of heat needed to be added is the mass of the water x the amount of change needed to get to boiling. So cold water does not boil faster. \n\nsalt will cause it to take longer. \n\nPeople think that tea tastes betterr if you start with cold water, which holds more oxygen. As you heat the water, the oxygen comes out. This may look like boiling.
451840
Quite obviously faster. To boil over and turn to vapour, the water molecules near the surface need a lower amount of energy when the water is being boiled in a rarer atmosphere.
131793
Various minerals that exist in the water could cause the boiling point to fluctuate.\n\nAs an example, people add salt to water that they are boiling in order to lower the boiling point of the water.  On the converse scale, salt is also used to lower the freezing point as well, which is why roads are salted to avoid icing of the surface.\n\nAside from sodium, water can contain other natural minerals, which will also affect the boiling and freezing points.  Elevation and pressure will also have an effect on this as well, depending upon whether you are at or below sea level.\n\nI imagine that if you were perfectly at sea level, boiling only distilled water, it would probably be the closest to 100 degrees that you can get.
579734
Water always evaporates. Higher temperatures will increase the evaporation rate, but water always evaporates. It has no relation with the boiling point; evaporation is a different phenomenon.\n\nExtracted from wikipedia:\n"It is a misconception that at 1 atm, water vapor only exists at 100 °C. Water molecules are in a constant state of evaporation and condensation flux near the surface of liquid water. "
1145151
A liquid will boil when its vapor pressure at the given temperature equals the [atmospheric] pressure above the liquid.\n\nI could not find a vapor pressure value of water at 90 degrees, but,\nAt 86 degrees F, the vapor pressure of water is about 31.8 mmHg.\nIf you lower the pressure above water to 31.8 mmHg at 90 degrees F, the water will boil.\n\n31.8 mmHg is about .042 atmospheres.
130715
Adding table salt to water causes the water to boil at a higher temperature.\nThe three important concepts are the vapor pressure, the boiling point, and the freezing point.  For water at standard pressure (1 atmosphere), the boiling point occurs at 100 degrees Celsius, and the freezing point occurs at 0 degrees Celsius.   A Liquid will boil when the vapor pressure is equal to the atmospheric pressure. If we start with just barely boiling water and add some salt, the water will stop boiling.  The salt has lowered the vapor pressure of the solution.  To increase the pressure we need to add heat.  To add heat, we turn up the temperature.  It turns out that in the dilute solution case, the change in boiling temperature is proportional to the concentration of the add solute (salt).
356469
The lower the air pressure, the lower the boiling point of water.
299546
water "boils" when the Kinetic energy (energy of motion and heat) cause the molecules of water to expand or separate far enough away that it changes from a liquid to a gas. The greater the force keeping the molecules together, the more energy it needs. On Earth, the force is air pressure. At sea level where the pressure is greatest, water boils at about 100 degrees Celsius. Up in the mountains at 7000 feet it would boil at 80 -90 degrees or even less. In space even the smallest amount of energy would cause it to "boil".\nIt takes one calorie to raise one gram of water one degree Celsius. If you trap the water in a container, you can get the heat of the water much higher than the boiling point. But it could explode if the container is too weak to handle the pressure. So don't try it.
316108
It depends on the purity of the water and the pressure of the system.  Pure water in normal atmospheric pressure boils at 212 F.
90779
c basically boiling of a liquid means the vapour pressure[pressure created at surface] equals the atmospheric pressure.the increase in vapour pressure is due to the fact that the kinetic energy of molecules movin thermal velocities because of increase in temp. therefore for some molecules the time taken by molecules to achieve this situation is faster as the molecules have diff forces of attraction .hence to break the forces and achieve the above situ. is diff for diff. liquids \n\n\nhope this is satisfactory any more queries  mail me
825292
i guess I'm wrong   but I thought that water would  freeze at 0  degrees celsius.  also it would boil at 100 degrees C. Even in a vacuum.  my guess!  btw at absolute 0  kelvin,  does that only exist in a vacuum?  If we could reach  - 450 degrees F.  would our cpu's operate at an infinite speed.....got me on this one.  I'm not sure on how atmospheric pressure relates to these conditions.  But I know someone knows!
427695
To "boil" something means to heat it to its boiling point and (I guess ) watch bubbles form and pop.  "Boiling point" means the temperature at which a substance turns from liquid to gas (this temperature will depend on the air pressure or pressure of another gas on the liquid: no pressure means no liquid phase).\n\nWe're used to thinking of water doing this as it turns from liquid to gas, but any liquid turning into a gas at the right temp will do it. So start with liquid nitrogen, heat it, watch bubbles form.  The liquid is nitrogen in liquid phase; the bubbles are nitrogen in gas phase.  It's still just nitrogen (N2, two atoms of nitrogen stuck together to make a single molecule).  The N2 bubbles burst and the nitrogen floats away, that's all.  By the way, this happens at -170 degrees or so, as I recall, so don't touch it....hard to think of this as "boiling" temperature, but there it is......
304917
I believe that you mean water boiling at a lower-than-normal temperature when the atmospheric pressure is lower, such as at high altitudes........if this is what you meant, water boils when the 'vapor pressure' of the water, which is the amount of liquid water which evaporates into the air and which rises with temperature, becomes equal to the atmospheric pressure.  If you are in Colorado, for example, there is just less air to push against the top of the water, so it will boil off with less heat to push it out.
363084
Actually the answer is Tungsten.  Rhenium is close, boiling at 5627c (9,668.93 degrees Fahrenheit), but the king of boiling points is still Tungsten at 5660c (10,220 degrees Fahrenheit)\n\nThere could be others, but many elements don't really stick around long enough for us to test their boiling point.
48257
ummm, no, water doesn't always boil at 100C.  It boils at 100c at one atmosphere, water will boil at room temperature in a vacuum.  But, hot water will boil faster, it requires less energy to heat the water, and the less water you have to boil the faster it will reach the boiling point.