Question: (a) Why do open tubular columns provide greater resolution than packed columns in gas chromatography? (b) Why do H2 and He allow more rapid linear

(a) Why do open tubular columns provide greater resolution than packed columns in gas chromatography?
(b) Why do H2 and He allow more rapid linear flow rates in gas chromatography than N2 does, without loss of column efficiency (Figure 23-12)?

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