wat temp does water boil?

Question

i need to kno 4 chem

Answer 1

pure (purified) water at sea level with one atmosphere of pressure will boil at 212 f or 100 c (don't remember the kelvin)

additives in the water, such as salt or minerals will raise these temps, and it's variable from just a small amount to a few degrees.

Answer 2

The centigrade scale was chosen so that its 0 point is the freezing of pure water and 100 is the boiling point at normal atmospheric condition (1 atm). However, both phenomena are influenced by external factors; they both need local anomalies to start. Water can be cooled below 0C without freezing, or heated above 100C without boling, if it is absolutely pure and the recipient has no corners; however, these are unstable states, and any perturbation will correct the situation.

Water can be heated up to about 150C without boiling; however, any small perturbation will start the boiling process. Heating water in a kettle, on a stove, will never get water in a superheated state (that is, above boiling point), because heating by convection is enough to start boiling at its lowest temperature. However, you can get superheated water in a cup with a round, perfectly smooth interior, in a microwave oven. In this state, any perturbation (e.g., vibration) will start the boiling process, which then will extend in the whole mass of water in an explosive fashion. If the microwave oven has a rotating plate, its vibrations will start the boiling; a nonuniform microwave field will generate more heat in some parts of the water than in other, therefore generating convection currents which will start the boiling.

Answer 3

Pure water boils at 100 degrees Celcius = 212 degrees Farenheit = 373.15 Kelvin.

Answer 4

Water boils at 100 Degrees C at standard atmospheric pressure. But the boiling point changes with pressure.

Answer 5

100 degrees C

Answer 6

The votes are in: 100 C. The affect of pressure is interesting, as pointed out. Moreover, above the Critical Point, it doesn't boil as such. The critical point pressure and temperature are quite high. At higher temperatures when the pressure is above the critical point pressure, it forms a supercritical fluid.

Answer 7

100 degrees Celcius
212.0118 degrees Fahrenheit
373.1500 degrees Kelvin

Answer 8

Basically, 100 degrees Celcius. A bit less if you're high up on a mountain.

Answer 9

212 degrees F
100 degrees C

Answer 10

100 degress C, 212 degress F