What is the boiling point of water at 11,000 feet?

Question

Is there a formula to adjust the boiling point at elevation? Is reletive humidity a factor?

Answer 1

Relative humidity does not have a significant effect on boiling point.

Here's a formula which is valid for the regions humans are likely to be found (say, up to 30,000 feet above sea level):

T = (1.518 * 10^7) / (40700 + 0.828582 * y)

where T is the boiling point in degrees Kelvin and y is the altitude in meters.  To convert from Kelvin to Celsius, subtract 273.

Answer 2

High altitude cooking is a whole different recipe. The higher you go, the lower the boiling temperature becomes. At sea level the boiling point of water is 212 degrees Fahrenheit. As a general rule, the temperature decreases 1 degree F for every 540 feet of altitude. On top of Pike's Peak, at 14,000 feet, the boiling point of water is 187 degrees F. This means pasta or potatoes cooked at sea level are seeing 25 degrees more heat than pasta or potatoes cooked on Pike's Peak. The lower heat means a longer cooking time is needed. In general, cooking time must be increased from 4-11 percent per 1,000 feet, depending on the product.

Answer 3

There is an online calculator to find boiling point of water at different altitudes.

Relative humidity is not a factor.

Below is the link for the calculator:

http://www.primogrill.com/boiling.htm

The above calculator takes current barometric pressure into account.  If you do not need to be exact, the general rule is that the boiling point of water decreases 1 degree F for every 540 feet of altitude.

Answer 4

0... i think.... at least that's what i've learned...