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Topic: vapor pressure calculations  (Read 2591 times)

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Offline Aufbau89

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vapor pressure calculations
« on: December 04, 2006, 03:36:28 AM »
I'm sorry for not posting any attempts to this problem but it is just too confusing for me, can someone please explain to me how to do this?


What is the maximum vapor pressure of a substance if it has a vapor pressure of 57.0 mmHg at -22.8 degrees Celsius and a critical temperature of 25 degrees Celcius?  (Heat of vaporization is 29 kJ/mol)


I'm completely stunned.. :-\
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Offline Donaldson Tan

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Re: vapor pressure calculations
« Reply #1 on: December 05, 2006, 03:23:26 PM »
You have to assume the substance remains at liquid state throughout the change in temperature, then Clausius Clayperon Equation becomes applicable.



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