Question

What would be the effect of raising the temperature or increasing the carrier gas flow rate one the ability to resolve two closely spaced peaks?(experiment : The dilute sulfuric acid-catalyzed dehydration on 2-methyl-2-butanol(t-amylalcohol) proceeds readily to give a mixture of alkenes that can be analyzed by gas chromatography)

Answer 1

1] normally, lower boiling compound move faster in comparison to higher boiling compound. with rising the temperature of the column, the retaintion time of will be decrease and the separation of compound will be less.

2] with increasing the flowrate the retaintion also decreases and thereby the separation of compound will be less.

so it can say that in both cases, the closely spaced peak will be overlap more.

N: B: for better separation of closely spaced peak, the temperature and the flow rate have to be decrease.