Vaporization

[KiaraTenorio_14B]

To determine which elements have the have the highest enthalpy energy for vaporization does this depend on the bond strength and the bond type?

[AnoushkaBhat2J]

To determine which elements have the have the highest enthalpy energy for vaporization does this depend on the bond strength and the bond type?

I think this refers to the intermolecular forces (LDF, H-bonding, dipole-dipole, etc), since highest enthalpy energy for vaporization is taking about the energy required to make 1g of liquid compound into a gas (so you would need to break the IMFs between the liquid molecules).

[chemoyku dis 1B]

Hi!

When we are looking at enthalpy of vapourisation, we are looking at its interaction with neighbouring atoms. This is where the intermolecular forces come in.

Rather than bond strength/length, we look at the intermolecular forces that exist between the molecules. For example water has hydrogen bonding with other water molecules and therefore its enthalpy of vapourisation is high.

I hope this helped.

[305805394]

Hi,

as a substance is being vaporized, its intermolecular distance is enlarged. Therefore, the molecule with the highest enthalpy of vaporization would exists the highest intermolecular forces.

Therefore, you should find the molecule with the strongest intermolecular forces(based on what we've learned now, it's probably the hydrogen bond I guess).

Hope this could address your concerns.

[Furkan Acar 3C]

It depends on the intermolecular forces if I remember correctly. Don’t really know too much to comment further about it.

[Brooklyn Burgess 3L]

High vaporization (as well as a high boiling point) have hydrogen bonding.

[Nicola Higgins 14B]

I know that a high enthalpy energy means a high boiling point, so we consider intermolecular forces when determining enthalpy values.

[cnyland]

This would have to do with whichever has the higher intermolecular forces.