If the temperature of a fluid is a result of the molecules bumping into one another, why doesn't stirring or shaking a glass of water make it boil? Or at least raise its temperature?
Thanks for any help with this!
(I know that it's easier to get water to boil att lower pressure...)
The goal is to get the water to an temperature of 100 degress celsius in the most effective way.
Then If you raise the pressure(with a pump), is it possible to get the water to the right temperature with less energy?!?
AND...
Homework Statement
If you suspend an open-topped container of water in a pot of boiling water, water in the inner container will reach 100 degrees C but will not boil. Why is this?
Homework Equations
The Attempt at a Solution
Liquid Hydrogen Boil off ?
I am a little bit confused as to what boil off is, I can only assume it is the loss of gas but it is still unclear to me as to how a gas can escape from a steel container. Can anyone try to explain this to me better. Thank you very much
I always thought it was at 212 F . My 7 year old teacher is teaching them 215 F. When did this change. I am sorry in advanced if this is in the wrong section.
I'm not sure if this would be better in another thread of not but here I go...
I have heard that if you put salt into water it will make it boil faster. Several people have also told me they read this same statement in cooking magazines and what not. Not wanting to trust a cooking magazine...
I read of an experiment in which people actually timed how long it took water to boil, if it was watched and not watched. The results were that indeed watched water boiled faster. Now at first this blew my mind because I can't believe no one had tried it before, or maybe they have it was just...
This one has me stumped. Please help me solve.
Thank you!
Time
A copper pot is heated by a burner which is at 195 ° C. If the water in the pot is boiling, how long does it take in seconds to boil away 0.4 L? The diameter of the pot is 27 cm, and it is 3.5 mm thick.
k copper = 9.4...