The retention time for cyclohexane on a gas chromatography instrument is 0.75 minutes. the temperature of the gas chromatography column is 70 degrees c and the gas flow rate is 60 ml/minute.
(a) would the retention time be higher or lower if the column temperature is raised to 100 degrees c?
(b) would the retention time be higher or lower if the flow rate is changed to 30 ml/minute?
(c) would the retention time be higher or lower if the column length was decreased to 1/2 the length?
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