Water's boiling point

[monkeyboy]

at higher alltitudes.

What's with that?

 

[disneysteve]

I don't remember the exact formula, but boiling point is based on temperature AND pressure. Higher altitude equals lower pressure.

 

[golfgal]

And if you add salt to it, that lowers the boiling point too, so water will boil at a lower temp.

 

[disneysteve]

And if you add salt to it, that lowers the boiling point too, so water will boil at a lower temp.

Nope. Adding salt does affect the boiling point but it RAISES it, not lowers it. Pure water at sea level boils at 212 degrees Fahrenheit. Salt water (20% solution) boils at 216 degrees. However, the salt water heats faster and reaches a boil sooner than the pure water.

http://www.swri.com/10light/water.htm

 

[golfgal]

Nope. Adding salt does affect the boiling point but it RAISES it, not lowers it. Pure water at sea level boils at 212 degrees Fahrenheit. Salt water (20% solution) boils at 216 degrees. However, the salt water heats faster and reaches a boil sooner than the pure water.

http://www.swri.com/10light/water.htm

Dang, I knew it was something goofy like that. I retyped lowers/raises about 5 times before I settled on one.