By how much does the boiling point of water change with altitude?

Answer 1

around the boiling point, you get about 1 deg F change in boiling point of water for ever 15 mm Hg change in atmospheric pressure

http://www.vivoscuola.it/us/rsigpp3202/umidita/copie/watvap.htm#c1

and this site has a table that correlates directly to altitude

http://www.hi-tm.com/Documents/Calib-boil.html

showing that the change in boiling boint is about 1 deg F per thousand feet of elevation change

Answer 2

depends on the altitude measured by the air pressure. The lower the air pressure, the lower the boiling temp

Use the site below and it will calculate the boiling temperature of water at a specific altitude or simply use the table on the bottom of the page

Answer 3

When I lived at 7000 ft. we found in the lab that water boiled at 93 C.

Answer 4

it changes with atmospheric pressure....which in turn varies with the density of air. the density of air decreases with increase in altitude. the relation between altitude and density of air is a complicated exponential.