Calculate average Ke of N2, O2, Ar & trace gas He & CO2 @12.5psi&10.5 psi Ntotal=0.1016mol Thanks!?

In gas chromatography, the most common detectors are either flame ionization or thermal conductivity detectors. HPLC typically uses a UV-visible absorbance detector. However, a number of types of detectors can be used.

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