At what altitude will water boil without heat?
AT 128,000 feet, the air pressure is a zero factor, and the temperature at which water will boil is -335.919 F, which is why astronauts wear pressurized suits to keep their blood from boiling in deep space.
High Altitudes:
Water will boil at high altitudes, but it isn't as hot as boiling water at sea level. This is because the air pressure is lower at high elevations. Boiling occurs when the water is hot enough to have the same pressure as the surrounding air, so that it can form bubbles. At high altitudes, air pressure is lower than at sea level, so the water doesn't have to get so hot to get to boiling.
More Info:
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What are your thoughts on this subject?
42 Comments
Christopher J Voce
Had to be the highest of the four I’d have thought - almost or above Stratosphere.
Maia
Human blood pressure is higher at higher altitudes.
Mother of Dogs
Wayne Roberts, Only if they use both. Many of us still use the old standards.
Wayne Roberts
Need to include metric equivalents.
Carroll Price
The boiling point of water, and other liquids depends on the amount of heat and surface pressure being applied to it.
Richard Jamieson
Metric please
Vicky Rosenberg
Picked the highest.
If boiling water is cooler at higher altitudes, then I guess their coffee isn’t so tasty either 😊
karen twirly
Had no idea, so I used a majority vote and it was correct.
deborahpmercer
Good question, but a tiny quibble, metric measurements too would have been nice.
tbear
Had no idea but guessed right!
Sandra Caulfield
If you picked the lower two numbers, water would be boiling on commercial flights.
Andrea Nelson
eviturro, wow, tough life you got there...
Sue Fairweather
another wrong guess
Denise Currie
Majority vote got me this one - Thanks guys
Jerry Edwards
Thomas Begeng, ALWAYS ONE SPOILER..!