Why does carbon dioxide have a very low boiling point?

Answer 1

CO2 is a compound made of non-metals.

Compounds made of non-metals are called covalent molecular substances.

Covalent molecular substances have a low melting and boiling point because there are weak intermolecular forces between the molecules of the compound and needs only a little thermal energy to separate the particles. But its only the IM forces that are broken not the covalent bonds.

There you go, i hope that helped

Answer 2

Carbon dioxide has a relatively low melting and boiling points because intermolecular forces between molecules are weak. This is because the carbon-oxygen bond is hardly polar, preventing an ionic force to hold the molecules together.

Answer 3

Simple covalent molecules have low melting and boiling points because although the covalent bonds between the atoms are very strong, the intermolecular forces between the molecules themselves are extremely weak. Hence this gives them the property of a low melting and boiling point.

Answer 4

Because it contains a few electrons. See, the boiling points of compounds increase with increasing molar mass. This increase in boiling point is due to the increase in dispersion forces for molecules with more electrons. Except for H compounds on the elements in Groups 5A, 6A, and 7A.

Answer 5

Between CO2 molecules, only dispersion forces exist while between water molecules, hydrogen bonds exist. Hydrogen bonds are much stronger than dispersion forces hence, water has higher boiling point.

Answer 6

Atoms bound with covalent bonds require less energy to separate. Covalent bonds are an approximately equal sharing of e- and there's just not as much energy bound up in the state than an ionic bond.

Answer 7

Carbon dioxide is a non-polar gas, and as such, it only has weak dispersion forces acting between its molecules. Dispersion force is very easy to overcome, so to boil it does not require much kinetic energy.

Answer 8

low