H bonding

[Reese - Dis 1G]

How does hydrogen bonding effect boiling and melting points?

[Madison Gil 3D]

The presence of hydrogen bonds in molecules increases both melting and boiling points because greater intermolecular forces in the molecule will require more energy to be broken apart.

[Manu Vohra 1L]

Hydrogen bonding results in higher melting and boiling points since it is the strongest type of intermolecular force (other than ionic bonding).

[Sarah Jeong 4F]

You can visually see this as a large pot of water(more hydrogen bonds) takes a higher temperature to boil than a small pot of water.

[Nicole Lee 4E]

Dr. Lavelle's examples in class were H2O and H2S. H2O has a higher melting point at 0°C and higher boiling point at 100°C compared to H2S which has a melting point of -80°C and boiling point of -60°C. Since H2O has hydrogen bonds, the melting point and boiling point increase.

[Alex Alonso - 4F]

Hydrogen bonding results in higher boiling and melting points

[JT Wechsler 2B]

The presence of a hydrogen bond will increase the melting point and boiling point of a substance because there is a stronger attraction between the molecules of the substance.

[angelagd3l]

the more hydrogen bonds the higher melting points?

[Vicky Lu 1L]

As hydrogen bonding is on the stronger side of intermolecular forces, it requires more energy to break this bond. This results in high boiling points since it requires more energy to separate the molecules.

[BenJohnson1H]

Why can it only occur with N O and F?

[Katie_Duong_1D]

Why can it only occur with N O and F?

Hydrogen bonding only occurs with N O F because these are very electronegative elements. N O F have more electron pulling power, creating a partial positive on the hydrogen and a partial negative on N O F. The electrostatic attraction between H and N O F is stronger than regular London dispersion forces.

[JT Wechsler 2B]

The presence of H-bonding increases both the melting and boiling points.

[605168557]

Melting and boiling points result from the intermolecular forces present. Hydrogen bonding as an intermolecular force will increase both melting and boiling points because greater energy is needed to separate the molecules.

[Abraham De Luna]

The presence of hydrogen bonds increases the melting point.

[005162902]

Due to the unique properties of water, it was a higher boiling point. The hydrogen bonds are stronger and require more heat to break them and allow the water to boil to steam.