At the base of Mount Everest, around 5,000 meters, the atmospheric pressure is roughly half of that at sea level. Boiling occurs when vapor pressure, the pressure exerted by a vapor in equilibrium with its liquid or solid phase, matches the atmospheric pressure pressing down on the liquid.
Why Water Boils Below 212°F on Everest
Consequently, the vapor pressure threshold is reached at a much lower temperature. At 1,600 meters (5,280 feet), the boiling point of water drops to roughly 95°C (203°F).
The table below illustrates the direct correlation between decreasing atmospheric pressure and the corresponding drop in the boiling point of water. The Science of Boiling Point and Atmospheric Pressure To understand why water boils at 70°C on Everest, it is essential to look at the physics governing this phenomenon.
Why Water Boils at 212°F on Everest Is a Myth
At sea level, the standard atmospheric pressure is 101. This significant reduction is not a anomaly but a direct consequence of the atmospheric conditions found at extreme altitude.
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