Re: Is it possible to heat but not boil water?



On 11 Feb 2006 18:53:35 GMT, Ian Smith <ian@xxxxxxxxxxxxxxxxx> wrote:

What do you mean by 'boiled'? At a molecular level, you can't boil a
single molecule of water, so what if the molecules adjacent to the
element pick up some thermal energy and migrate away from the element.

and if they migrate away as a bubble of vapor?



If the element is driven appropriately it would be perfectly feasible
to heat water without anything in contact with the water exceeding
100C - simply drive the element with a PWM voltage controlled by a
temperature probe on the surface of the element

agreed, yet that is not how machines are currently set up.
.



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