Changes

Boiling points can be changed in several ways. The addition of [[solute]]s or other substances usually changes the boiling point. Additionally, changing the [[pressure]] on a liquid changes its boiling point.  

Boiling points can be changed in several ways. The addition of [[solute]]s or other substances usually changes the boiling point. Additionally, changing the [[pressure]] on a liquid changes its boiling point.  

The boiling point of a liquid depends on the [[pressure]] of the surrounding air. An increase in air pressure raises the boiling point; a decrease in air pressure lowers the boiling point. In the low pressure environment at the top of Mt Everest for example, water boils at only 69 °C (156.2 °F). [[Aquanaut]]s find that water in their habitat only boils at high pressure.

The boiling point of a liquid depends on the [[pressure]] of the surrounding air. An increase in air pressure raises the boiling point; a decrease in air pressure lowers the boiling point.<ref>{{Cite book|title=Chemistry: The Physical Setting|last=Kavanah|first=Patrick|publisher=Pearson|year=2018|isbn=978-0-328-98858-7|language=English}}</ref> In the low pressure environment at the top of Mt Everest for example, water boils at only 69 °C (156.2 °F). [[Aquanaut]]s find that water in their habitat only boils at high pressure.

Boiling point can also be defined in terms of [[vapour pressure]] as the temperature at which vapour pressure of liquid becomes equal to atmospheric pressure.

Boiling point can also be defined in terms of [[vapour pressure]] as the temperature at which vapour pressure of liquid becomes equal to atmospheric pressure.