December 11, 2019, 01:07:04 PM
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Topic: Measuring the equilibrium between an alcohol and its vapour  (Read 252 times)

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Offline Arachnid2209

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Measuring the equilibrium between an alcohol and its vapour
« on: October 31, 2019, 12:38:00 PM »
Hello,

I recently conducted an experiment where in a closed system, I let an alcohol reach equilibrium with its vapour, so the rate of condensation equals the rate of evaporation. Basically, the air is saturated with the alcohol vapour. I then measured the change in volume of liquid alcohol, and I want some way of expressing the equilibrium. Would you recommend the typical Kc=products/reactants for this or is there a better way of expressing the relationship?

Online mjc123

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Re: Measuring the equilibrium between an alcohol and its vapour
« Reply #1 on: October 31, 2019, 02:03:04 PM »
The equilibrium in this case is the vapour pressure of the liquid, which is constant at a given temperature.

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