it is said that ,' water boils at 100 degree celcius when atmospheric pressure is 1 atmosphere.'why is it said so?
Answers
Answered by
14
Because with the change of atmospheric pressure, it's boiling pount changes.
Like in high altitude, where atm is less than 1, water boils at a lower temperature.
Like in high altitude, where atm is less than 1, water boils at a lower temperature.
Answered by
7
Explanation:
Boiling point is defined as the point at which vapour pressure of liquid becomes equal to the atmospheric pressure.
Therefore, when water boils at 100 degree Celsius then it starts to change into vapour state. At this point, the atmospheric pressure is 1 atmosphere.
Hence, we can conclude that 100 degree celsius vapour pressure of water is reached when atmospheric pressure is 1 atmosphere.
Similar questions