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Why does boiling water in a large pot on a stove have a temperature of 100 even if it has been boiling for an hour?
Wiki User
∙ 8y ago
100C is waters boiling point. At that point, water changes from a liquid to gas, which would be water vapor.
Stick a thermometer in there. It will stay at 100 C until the phase change is completely finished.
When water changes state from liquid (water) to gas (vapor) energy is required, this is known as the latent heat of evaporation. As you add more heat (energy) this is used to turn more water into vapor. The water remains at 100C because all the energy is going into making more vapor rather than raising the temperature of the water.
If you want to make things a lot more complicated.......It is actually possible to heat water beyond 100C. (even at atmospheric pressure) This is known as superheating. See below link, this is probably a bit advanced for the question but physics is like that!
Misunderstanding Steam is hotter than the boiling water, which is why a steam burn is worse than a water burn. Correction No it isn't necessarily, when water boils gently in an open pan both water and steam are at 100C. The steam however has a big chunk of extra energy. If it comes into contact with your hand (which is a lot cooler than 100C) it condenses back into liquid water. This releases the energy as heat(latent heat of evaporation) into your hand. Once it condenses the water is still at 100C. It then adds more heat to your hand until the water and your hand are the same temperature. Ouch!
Superheated - Explain how you can achieve a temperature above 100C at atmospheric pressure. I believe a higher pressure is needed to raise temperature and maintain state.
when people say water has a boiling point of 100°, it's a myth. please see the related link that explains why
Wiki User
∙ 13y ago
Wiki User
∙ 9y ago100 Celsius is the boiling point of water at atmospheric pressure, so it can't get hotter than that unless you raise the pressure.
However, actually evaporating the water absorbs heat, this is called the latent heat of evaporation, so all the water doesn't suddenly evaporate at the same time. With a large amount of water it can take some time before it all evaporates. Just as well, or cooking would get exciting!
Wiki User
∙ 8y agoBecause a liquid can not get hotter than its boiling point. The added heat (after reaching boiling point) is taken away by the vapor phase as latent heat energy.
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Does boiling water in a pot on a stove create water vapor?
yes if its boiling yes
Which has the higher temperature - boiling water or ice?
boiling water
What are freezing and boiling temps for water?
Zero degrees C= Freezing temperature for water and one hundred degrees C= Boiling temperature for water.
What temperature does salt dissolve in water fastest?
highest possible temperature for the water, without boiling
What is the temperature of water after boiling for 5 minutes?
after 5 minutes the water vaporates (it turnes from water into steam) Until all molecules have gone from liquid to gas, the temperature is steady at boiling temp, 100C.
What is the temperature of Microwaved and boiled water?
With the microwaved water, it pretty much depends on the microwave Owens temperature. Though boiling water is 100 degrees Celsius. (I would like to add): The water's temperature depends how long the microwave runs and the power of the microwave. However, if the water is boiling in the microwave, it is the EXACT same temperature as water boiling on the stove. The microwave is just another method of boiling the water.
What is pan boiling?
pan boiling by the water on the stove
Does boiling water in a pot on a stove create water vapor?
yes if its boiling yes
Which has the higher temperature - boiling water or ice?
boiling water
What is the temperature of boiling water at sea level?
The temperature of boiling water at sea level is 100 The temperature of boiling water at sea level is 211.149°F.
Would there be a difference in the boiling point temperature of water between a cup of water and a bathtub of water?
No. Boiling point is an intensive physical property, which means it does not matter how large the sample is.
What do you call water changing to gas?
Water changes from a liquid to a gas in a process known as evaporation. (Think about a boiling pot of water on a stove).As the temperature rises, the water becomes water vapor, a gas.
how does heat reach water in a saucepan that is on a heated stove?
by boiling
What happens to the temperature of boiling water if you turn up the heat on the stove?
The boiling point of water is 100 degrees celsius. The water will evaporate at boiling point. By the way what do you mean "what happens to the temperature of boiling water" if you think about it, it does not make sense.
What can you notice about the temperature of sea water during boiling?
The boiling point of sea water is higher compared with pure water. Temperature remain constant during boiling.
Will water keep on boiling forever if a sausepan is left on a hot stove?
Boiling water changes it's state from a liquid (water) into a gas (steam) so water left on a hot stove top will eventually disappear as it all turns to steam.
Does larger mass of water have different boiling temperature?
No. A large mass of water will have the same boiling point as a smaller mass of water. Differences in pressure, however, will cause differences in boiling point. - - - - - It takes longer to boil a large amount of water than a small amount because it takes longer to heat it up.
