As the pressure increases, how does the boiling point change?

Answer 1

As external pressure increases, boiling point increases.

The boiling point of a liquid is defined as the temperature at which the vapour pressure of the liquid becomes equal to that of the ambient pressure, and bubbles of vapour form directly in the liquid. The normal boiling point is specified at atmospheric pressure, i.e. the vapour pressure of the liquid is #1# #"atmosphere"#.

Under reduced pressure, therefore, many liquids can be purified by distillation in that their boilling points are substantially reduced.

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Answer 2

Axel Alvarado

A substance's boiling point rises in tandem with pressure.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.