Arrange the liquids pentane (CH_3CH_2CH_2CH_2CH_3), pentanol ( CH_3CH_2CH_2CH_2C

Question

Arrange the liquids pentane (CH_3CH_2CH_2CH_2CH_3), pentanol ( CH_3CH_2CH_2CH_2CH_2OH), and pentanal (CH_3CH_2CH_2CH_2CHO) in order of decreasing viscosity, surface tension, and boiling point. (There is a possibility of more than one overlapping)

Can you please explain the steps, if any, you took to determine the answer. If it is an obvious answer without any steps, will you explain what exactly it is that is obvious? Thank you.

Explanation / Answer

CH_3CH_2CH_2CH_2CH_2OH > CH_3CH_2CH_2CH_2CHO > CH_3CH_2CH_2CH_2CH_3 This is the order for boiling point because -OH groups will form Hydrogen bonding, where as there will be dipole-dipole attraction in Aldehyde and only van-der wall force in pentane. CH_3CH_2CH_2CH_2CH_2OH CH_3CH_2CH_2CH_2CH_3 order for surface tension

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