Though the dipole moment of HF and ethyl fluoride is same yet the boiling point of ethyl fluoride isapprx -37 0 C and that of HF is 19 0 C approx. Why?

Question

Ramesh V · Answer

Since the dipole moment of Ethyl Fluoride and Hydrogen Fluoride is same, its not of concern here, but rather only van der waals forces which depend mainly on the size of the molecule

The strength is based on intermolecular interactions.

Ethyl Fluoride is nonpolar and have very weak interactions between the molecules resulting in a low boiling point.

Hydrogen Fluoride forms hydrogen bonding which is harder for it to break apart because the bond are stronger. Resulting that the HF boiling point is much higher.

---

Please feel free to post as many doubts on our disucssion forum as you can. If you find any question difficult to understand - post it here and we will get you the answer and detailed solution very quickly. We are all IITians and here to help you in your IIT JEE preparation. All the best.

Regards,
Naga Ramesh
IIT Kgp - 2005 batch

Pisgahchemist · Answer

Ethyl fluoride is indeed polar, contrary to what is said by Naga Ramesh, and can be a hydrogen bond recipient. But there is no hydrogen bonding between molecules of ethyl fluoride like there is between molecules of HF. Hydrogen bonding is responsible for the greater boiling point of HF.

Thank you for registering.

Register Now and Win Upto 25% Scholorship for a Full Academic Year !

Enter Your Details

Registration done!

Though the dipole moment of HF and ethyl fluoride is same yet the boiling point of ethyl fluoride isapprx -37 0 C and that of HF is 19 0 C approx. Why?

Though the dipole moment of HF and ethyl fluoride is same yet the boiling point of ethyl fluoride isapprx -37⁰C and that of HF is 19⁰C approx. Why?

2 Answers

Think You Can Provide A Better Answer ?

Provide a better Answer & Earn Cool Goodies See our forum point policy

Other Related Questions on Physical Chemistry

ASK QUESTION

Answer and earn gift vouchers

View courses by askIITians

Design classes One-on-One in your own way with Top IITians/Medical Professionals

Complete Self Study Package designed by Industry Leading Experts

Live 1-1 coding classes to unleash the Creator in your Child

a Complete All-in-One Study package Fully Loaded inside a Tablet!

Register Now & Win Upto 25% Scholorship

Thank you for registering.

Register Now and Win Upto 25% Scholorship for a Full Academic Year !

Enter Your Details

Registration done!

Though the dipole moment of HF and ethyl fluoride is same yet the boiling point of ethyl fluoride isapprx -37 0 C and that of HF is 19 0 C approx. Why?

Though the dipole moment of HF and ethyl fluoride is same yet the boiling point of ethyl fluoride isapprx -370C and that of HF is 190C approx. Why?

2 Answers

Think You Can Provide A Better Answer ?

Provide a better Answer & Earn Cool Goodies See our forum point policy

Other Related Questions on Physical Chemistry

ASK QUESTION

Answer and earn gift vouchers

View courses by askIITians

Design classes One-on-One in your own way with Top IITians/Medical Professionals

Complete Self Study Package designed by Industry Leading Experts

Live 1-1 coding classes to unleash the Creator in your Child

a Complete All-in-One Study package Fully Loaded inside a Tablet!

Register Now & Win Upto 25% Scholorship

Though the dipole moment of HF and ethyl fluoride is same yet the boiling point of ethyl fluoride isapprx -37⁰C and that of HF is 19⁰C approx. Why?