Question

How does the elevation and air pressure affect the boiling point of water?

Answer 1

pressure affects the boiling point... When atmospheric pressure  increases, the boiling point  becomes higher, and when atmospheric pressure decreases (as it does when elevation increases), the boiling point becomes lower. pressure  on the surface of water tends to keep the water molecules contained.

Answer 2

Answer:

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.