Re: [USMA:33760] Re: BOILING, FREEZING AND THE FAHRENHEIT THERMOMETERDear Pat

And where does this leave the boiling point of water? Is it still exactly at 100 °C?

The boiling point of water isn't a constant in the same way as the triple point. It depends on atmospheric pressure. The lower the pressure the lower the temperature at which it boils.

I also understand that vaporisation actually occurs at all temperatures. The boiling point is when all molocules lose their grip and escape the mutual bondage. It isn't so distinct a point as freezing.

Phil Hall

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