As the temperature of a GC column increases,the____________________ of the analytes increases,the retention time________________________________________and the peak shapes____________________ .
A)vapor pressure;;increases;;sharpen
B)solubility;;decreases;;sharpen
C)vapor pressure;;decreases;;sharpen
D)equilibrium;;increases;;broaden
E)temperature;;increases;;sharpen

Question

Quizplus · Accepted Answer

As temperature increases, the vapor pressure of the analytes decreases, leading to faster elution and shorter retention times. However, higher temperatures also sharpen peak shapes due to reduced interaction with the stationary phase. Option A is incorrect because increasing vapor pressure leads to broader peaks. Option B is incorrect because increasing solubility would lead to longer retention times. Option D is incorrect because increasing equilibrium would lead to longer retention times. Option E is incomplete and does not state what effect temperature has on peak shapes.

As the Temperature of a GC Column Increases,the____________________ of the Analytes