What is boiling? When does a substance boil?

1 Answer
anor277
Jun 8, 2017

"The boiling point" is defined as the temperature.......

Explanation:

The "boiling point" is defined as the temperature at which the vapour pressure of the liquid is equal to the ambient pressure, and bubbles of vapour form directly in the liquid. The "normal boiling point" is specified when the ambient pressure is 1*atm.

Of course, if we reduce the ambient pressure, the boiling point will be substantially reduced, and this is an example of the principle of "vacuum distillation", where an otherwise involatile liquid is distilled under high vacuum.

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