How does pressure affect the boiling point?

Answer 1

As pressure increases, the energy required to boil a liquid increases because boiling point is the point where the vapour pressure equals or exceeds the atmospheric pressure.

A substance's boiling point is, as previously mentioned, the point at which its vapour pressure equals or surpasses atmospheric pressure. As temperature rises, more and more particles have the energy to enter the gas phase, increasing the vapour pressure until it equals or surpasses atmospheric pressure, at which point the liquid boils.

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Answer 2

Layla Ahmed

Increasing pressure raises the boiling point of a substance, while decreasing pressure lowers it. This is because higher pressure compresses the gas phase above the liquid, making it more difficult for bubbles to form and for the liquid to transition into the gas phase. Conversely, lower pressure reduces the force exerted on the liquid's surface, making it easier for bubbles to form and causing the boiling point to decrease.

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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.