Measuring activities with a Knudsen cell

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The discussion centers on the measurement of activities using a Knudsen cell, focusing on how these measurements relate to Gibbs energy calculations. Participants seek resources that explain the principles behind Knudsen cells, including what specific activities are measured and the methodology for deriving Gibbs energy from these measurements. Additionally, there is interest in understanding the temperature range applicable to this method. A suggestion is made to explore resources related to electrolysis for further information. Links to relevant websites are provided for additional research on the topic.
lalbatros
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Hello

I would like to find some texts or web sites explaining how and why activities can be measured with a Knudsen cell. What is measured and how the Gibbs energy is deuced from the measurements.

I would also like to find out the range of application of this method, like for temperatures.

Thanks,

Michel
 
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I've actually researched a bit on electric cells, perhaps you can find something here (try to browse under electrolysis etc)

http://groups.msn.com/GeneralchemistryHomework/methodsofanalysis.msnw
 
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