Question

r 11 Homework 60% 05/20/19 12 Question (1 point) a See page 489 Rank the compounds below in order of increasing vapor pressure at 298 K. 1st attempt hi See Periodic Table See Hint Question List (3 images) (Drag and drop into the appropriate area) H2 H2 ne ne やSUBMIT ANSWER K 12/21> 11 OF 21 QUESTIONS COMPLETED

Answer 1

The boiling point (vapor pressure become equal to atomspheric pressure)of these cycloalkanes increases as the carbon chain increases or mass increases. Or we can say the molecules having higher mass or higher carbon chain have lower vapour pressure, Higher vapor means pressure lower boiling point.

Hence the Rank will be (increasing order)

Decalin< Cyclohexane <cyclopentane

Hence cyclopentane has highest vapor pressure at 298K