water is boiled it's temperature does change give reason
Answers
Answer:
When water is boiled, its temperature does not change until it has completely changed into the vapour state. This is because the heat which is supplied is used in changing the state by overcoming the forces of attraction between the water molecules.
Answer:
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Explanation:
The heat you supply goes into converting the water from liquid to vapour. It takes energy to break each and every molecule out of the intermolecular forces holding it in the liquid phase. That energy comes from your heat supply. As long as the pot is open to the air and the steam can easily escape, you will not be able to raise the temperature of the water much above 100°C at 1 atm pressure. Note, I said not much above 100°C. The pot of water on your stove is actually hotter than the boiling point, if you can see that it is boiling. The boiling point is the equilibrium point where the water is not actively boiling. If you want it to be actively producing bubbles then you have to turn the heat higher and make it hotter than the boiling point. That extra heat then quickly is dissipated as the water vapour takes away the extra heat. The more heat you supply, the higher above the boiling point you will raise the temperature of the water, so the faster the water will boil and the more heat you therefore need to supply to keep the temperature higher than the boiling point. In other words, it will rise a bit above the boiling point but not much and it will be quickly harder and harder to raise the temperature because the boiling will get faster and faster as you add more heat, making it more difficult to keep the water hotter than the boiling point.