Jump to content

supercooling water


japan rocks/andromeda
 Share

Recommended Posts

It belongs in speculations because of this bit

" i think it can because i think boiled water has no impurities "

If I take some water and add sugar then boil it, the sugar is still there.

Boiling water doesn't generally remove impurities.

Edited by John Cuthber
Link to comment
Share on other sites

can boiled water be supercooled?,it can freeze faster than cold water but can it be supercooled ? i think it can because i think boiled water has no impurities and that it can be supercooled, do you

I don't need to speculate because I have repeatedly supercooled both very pure water and water containing huge amounts of impurities, so boiled water can probably be supercooled, but it also probably depends upon the impurities.

Link to comment
Share on other sites

The idea that "i think boiled water has no impurities" is speculative to the point of being plainly wrong.

Anything based on that idea is also speculative.

The fact that water can generally be supercooled a bit isn't speculative, it's just an observation. The given reason is pure speculation.

 

anyway there are two questions in the OP

"can boiled water be supercooled?"

to which the answer is yes

and "i think it can because i think boiled water has no impurities and that it can be supercooled, do you ?"

to which the answer is (from most people's point of view), no.

Link to comment
Share on other sites

So, boiling water doesn't freeze faster, except under very specific conditions.

 

The point in the link by Incendia (above) that makes the most sense to me (i.e. I think it has the greatest effect) is the convection as a result of the cooling process. The difference in heat transfer between a completely stagnant layer of water and a layer with any convection is large.

 

p.s. thanks for the link, Incendia.

Edited by CaptainPanic
Link to comment
Share on other sites

Hi zheng,

 

Thanks for taking the time to post, but if you just want to say thanks for posting the question it's customary to give the poster some reputation (or karma). You can do this with the little plus button at the bottom right corner of their post.

 

Thanks,

 

Dave

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.