Why does water have such a high boiling point in comparison to similar compounds?

Why does water have such a high boiling point in comparison to similar compounds?

Water molecules in liquid state have the ability to form hydrogen bonds with each other. These hydrogen bonds are some of the strongest of all intermolecular forces, so a large amount of energy is needed to break these interactions − this is the main reason why water has such a high relative boiling point.

Why does water have high boiling and melting point compared to other molecules of same molecular weight?

First there is molecular size. Large molecules have more electrons and nuclei that create van der Waals attractive forces, so their compounds usually have higher boiling points than similar compounds made up of smaller molecules. The attractive forces between the latter group are generally greater.

Why does H2O have a higher melting and boiling point as compared to H2S?

This is an account of intermolecular hydrogen bonding which is present in the molecules of H2O but is absent in the molecules of H2S. As a result, both melting and boiling point of water are higher than those of hydrogen sulphide.

Why hydrogen sulphide has lower boiling point than water?

H2S molecules are involved in weaker hydrogen bonding than H2O molecules. This is because of the lower electronegativity of sulphur than oxygen. So, less energy is required to break the hydrogen bonds in H2S. Thus, the boiling point of H2S is lower than that of H2O.

Why does water have a higher boiling point than hydrogen?

Water as a “perfect” example of hydrogen bonding + hydrogens and lone pairs so that every one of them can be involved in hydrogen bonding. This is why the boiling point of water is higher than that of ammonia or hydrogen fluoride.

Why does water have such high boiling point?

Water has an unusually high boiling point for a liquid. Water is made up of oxygen and hydrogen and can form hydrogen bonds, which are particularly strong intermolecular forces. These strong intermolecular forces cause the water molecules to “stick” to one another and resist transition to the gaseous phase.

Why is the boiling point of water so much higher than that of the other hydrogen compounds of group VI of the periodic table?

There are exactly the right numbers of δ+ hydrogens and lone pairs so that every one of them can be involved in hydrogen bonding. This is why the boiling point of water is higher than that of ammonia or hydrogen fluoride.

Why do compounds having hydrogen bonding have high melting and boiling points?

The high melting and boiling point of the compound containing hydrogen bonds is due to the fact that some extra energy is needed to break these bonds. In water, hydrogen bonding causes linkages in the water molecules which result in the boiling point of water is more than that of the other compounds.

Why does water have a high boiling point and high melting point?

Why does water have such a high boiling point?

Why is the boiling point of hydrogen low?

Physical and chemical properties The extremely low melting and boiling points result from weak forces of attraction between the molecules.

Which has a higher boiling point water or hydrogen?

Water has a higher boiling point because the hydrogen bonds that form among water molecules are stronger than the Van der Waals interactions among methane molecules, thus more energy must be provided in order to break the hydrogen bonds and allow the water molecules to escape the liquid state.

Why does water have a higher boiling point than hydrogen sulphide?

Water has a higher boiling point than hydrogen sulphide. The intermolecular attractions between water molecules are stronger than H2S molecules due to hydrogen bonding in H2O due to high electronegativity and small size of oxygen atom. Click to see full answer.

What is the difference between hydrogen sulfide and water?

The hydrogen sulfide molecule (H2S) and the water molecule (H2O) are very similar. However, the boiling point of hydrogen sulfide is -60*C whereas the boiling point of water is 100*C.

Why is the intermolecular attraction between water molecules stronger than H2S?

The intermolecular attractions between water molecules are stronger than H2S molecules due to hydrogen bonding in H2O due to high electronegativity and small size of oxygen atom. Click to see full answer. Similarly, when compared to h2s h2o has a higher boiling point because h2o contains stronger?

What is the difference between H2S and H2O?

The hydrogen sulfide molecule (H2S) and the water molecule (H2O) are very similar. However, the boiling point of hydrogen sulfide is -60*C whereas the boiling point of water is 100*C. How can the intermolecular forces explain this difference?