Why does water boil at lower temperatures in high altitudes?

At higher altitudes, atmospheric pressure is lower, which causes water to boil at a lower temperature than it does at sea level. The provided source package does not contain direct factual claims explaining the exact thermodynamic relationship between altitude and water's boiling point, though it discusses water's physical states, vapor pressure, and general properties.

What we know

• Water exists on Earth in solid, liquid, and gas phases because surface temperatures and pressures are close to its triple point. [3]
• The equilibrium capacity to hold water vapor is determined by the equilibrium vapor pressure of water at a given temperature. [4]
• Early internal combustion engine fuels utilized relatively volatile hydrocarbons with specific boiling points to function effectively in carburetors. [2]

Still open

• The supplied sources do not provide specific data or formulas detailing how different altitude elevations numerically decrease the boiling point of water.

Where to go next

• what caused itHow does atmospheric pressure change with elevation?
• what followedHow does lower boiling point affect cooking times in the mountains?
• how it workedWhat is vapor pressure and how does it relate to boiling?
• the bigger pictureWhat are all the physical states and forms of water on Earth?
• compared withHow does humidity depend on temperature and pressure?
• an unexpected connectionHow does early engine fuel volatility relate to water behavior?Both topics involve understanding boiling points and phase changes of volatile liquids under varying industrial and environmental conditions.

Sources

• [1]history of gasoline (Wikidata Q130974585) · CC0 1.0
• [2]History of gasoline · CC BY-SA 4.0
• [3]Water · CC BY-SA 4.0
• [4]Humidity · CC BY-SA 4.0
• [5]Cocaine · CC BY-SA 4.0

Your path

1. Why is Moses the most mentioned person in the Quran?
2. /What links the philosophies of Wittgenstein and Heidegger?
3. /Who was Heinrich Cornelius Agrippa?
4. /Why does water boil at lower temperatures in high altitudes?