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Explain why propanol has higher boiling …

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Explain why propanol has higher boiling point than that of the hydrocarbon butane?

Posted by Nisha Yadav 5 years ago

CBSE > Class 12 > Chemistry

4 answers

Jassi Midha 5 years ago

Propanol has higher boiling point because of hydrogen bonding where is hydrocarbon butane is held with weak vander waal forces. Hence, has lower boiling point than propanal ✓ alcohol also soluble in water because of hydrogen bonding.

Lovely Sharma 5 years ago

Actually I was thinking about a haloalkane so by mistake I wrote dipole dipole interaction, as there is haloalkane so the force is weak van der waal's force.

Lovely Sharma 5 years ago

Ethanol remains associated through strong intermolecular H Bonding while butane remain associated through comparitively weak dipole-dipole interaction. So, bp of ethanol is higher than butane

Yogita Ingle 5 years ago

The boiling point is directly proportional to the intermolecular forces existing in a compound.

In propanol, there is an intermolecular hydrogen bonding and Van der Waal's forces.

Whereas in butane weak van der Waal's force of attraction is the only forces between the molecules. Therefore, propanol has highest boiling point (391 K) as compared to that of butane (309 K)

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