Why does sulfur have a higher boiling point than oxygen?

Why does sulfur have a higher boiling point than oxygen?

– At room temperature, oxygen exists as diatomic molecule O2. – At room temperature, sulphur exists as polyatomic molecule S8. – S8 has packed ringed structure with strong covalent bonds between the molecules, thus it has high melting as well as boiling point.

Why oxygen has lower melting point than sulphur?

The oxygen exists as a diatomic molecule, O2, while sulphur exists as a polyatomic molecule, S8. Hence, there is a large difference between the melting point and the boiling point of oxygen and sulphur.

Why sulphur has high melting point?

Sulfur: sulfur consists of S8 rings of atoms. The molecules are bigger than phosphorus molecules, and so the van der Waals attractions will be stronger, leading to a higher melting and boiling point.

Why it has high melting and boiling point?

The more energy needed, the higher the melting point or boiling point . Since the electrostatic forces of attraction between oppositely charged ions are strong, their melting and boiling points are high.

Does sulphur have a higher boiling point than oxygen?

These temporary dipoles are more significant for larger atoms (here say sulphur atoms). Due to which Sulphur having stronger intermolecular forces has higher melting point and boiling point than oxygen with weaker intermolecular forces.

Does oxygen have a higher melting point than sulfur?

There is large difference between the melting and boiling points of oxygen and sulphur. Due to much larger molecular size of S8 molecule as compared to O2 molecule, the van der Waals forces of attraction are much stronger in S8 molecules than in O2 molecules.

What is the boiling point and melting point of oxygen?


atomic number 8
melting point −218.4 °C (−361.1 °F)
boiling point −183.0 °C (−297.4 °F)
density (1 atm, 0 °C) 1.429 g/litre
oxidation states −1, −2, +2 (in compounds with fluorine)

Does Aluminium have high melting point?

660.3 °C
Aluminium/Melting point

Does sulfur have a high boiling point?

444.6 °C
Sulfur/Boiling point

Which metal has high melting and boiling point?

Metals usually have high melting point and boiling point. Forexample, iron, cobalt and nickel have high melting and boiling point. Tungsten has thehighest melting point. There are some exceptions – gallium and caesium have very low melting points.

What causes high melting point?

The stronger the intermolecular forces are, the more energy is required, so the higher the melting point is. Many intermolecular forces depend on how strongly atoms in the molecule attract electrons — or their electronegativity.

Why oxygen is gas while sulphur is solid at room temperature?

The intermolecular forces in oxygen are weak van der Waals forces, which causes it to exist as gas. On the other hand, sulphur does not form strong S=S double bonds hence exists as a puckered structure held together by strong covalent bonds and exists as a polyatomic molecule. So, it exists as a solid.

What is the boiling point of sulfur in degrees?

Sulfur – Boiling Point Boiling point of Sulfur is 444.7°C.

Why is the melting point of oxygen higher than sulphur?

At any given temperature, the energy present is the same, so sulphur atoms vibrate more slowly than oxygen atoms. The less vibration is happening, the easier a substance becomes solid, which is why heavier atoms tend towards higher melting and boiling points, all other things being equal, which they are not.

How is the valence shell of sulfur different from that of oxygen?

Sulfur can expand its valence shell to hold more than eight electrons, but oxygen cannot. These seemingly minor differences have important consequences for the chemistry of these elements. The radius of a sulfur atom is about 60% larger than that of an oxygen atom.

How is sulfur related to oxygen in the periodic table?

Because sulfur is directly below oxygen in the periodic table, these elements have similar electron configurations. As a result, sulfur forms many compounds that are analogs of oxygen compounds, as shown in the table below. Examples in this table show how the prefix thio – can be used to indicate compounds in which sulfur replaces an oxygen atom.