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Q & A: boiling-point and pressure

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Most recent answer: 05/07/2008
Q:
WHAT IS THE RELATIONSHIP BETWEEN A COMPONENT'S BOILING POINT AND VACUUM; HOW A HIGH BOILING POINT LIQUID IS BOILED IN VACUUM AND SEPARATED BY DISTILLATION PROCESS USING VACUUM. PLEASE GUIDE ME THE WHOLE CONCEPT, LOGIC BEHIND THIS AND THE METHODOLOGY TO CALCULATE.
- GURPREET SINGH BAKSHI (age 25)
MEERUT,UTTAR PRADESH,INDIA
A:
Our short-answers won't suffice to supply all the information you want. We do have other answers on this site describing why the boiling point is reduced as the pressure is reduced. You can search this site and others for "Clausius-Clapeyron" equation or look in tables of vapor pressure vs. temperature. The explanations and derivations can be found in most introductory books on thermal physics, for example in "Satistical Physics" by Reif, Berkeley physics course volume 5.

Mike W. 

(published on 05/07/2008)

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