Why does H2O have a higher boiling point?

Why does H2O have a higher 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.

Which reason explains why the boiling point of water H2O is higher than the boiling point of hydrogen sulfide h2s )?

Between water and hydrogen sulfide, both are polar, and have dipole-dipole forces, so they have higher boiling points than methane or silane. But water has hydrogen bonds, which are extra-strong dipole-dipole forces. Water boils much hotter than hydrogen sulfide.

Why is the boiling point of water significantly higher than other compounds with a similar molecular weight?

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. …

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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 H2O have a higher boiling point than h2se?

It’s due to the higher electronegativity of Oxygen than Sulphur that it makes Intermolecular Hydrogen bonds with the Hydrogen Atoms of Other water molecules thus the Boiling Point of H2O increases and is much higher than that of H2S.

Why does H2O have a higher boiling point than NH3?

H2O has a higher boiling point than NH3 because (i) the H-bonds are stronger and (ii) it contains twice as many H-bonds. H2O has a higher boiling point than HF because it contains twice as many H- bonds, despite these being individually weaker. Only weak dispersion forces act in CH4 and CH3CH3.

Does H2O have the highest boiling point?

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.

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Does H2O or H2Se have a higher boiling point?

By comparing H2O with H2S, H2Se and H2Te, we can see that the boiling points will increase from H2S to H2Te because of the increasing molecular weights. That means H2O is supposed to have a lower boiling point then H2S, but the opposite can be observed and thus be explained by the formation of strong hydrogen bonds.

Why does H2Se have a lower boiling point than H2O?

In terms molecular hydrogen bonding in touch, molecular hydrogen bonding in water. Lower boiling point Of H two years is due to absence of absence of hydrogen bonding.

Why does H2O have a higher boiling point than ch3oh?

The number of intermolecular hydrogen bonds differs between methanol and water. The intermolecular hydrogen bond is higher in water as compared to methanol and that is why there is a higher level of interaction between the molecules. This is why the water has a higher boiling point as compared to methanol.

Why does NH3 have a lower boiling point than H2O?

Due to strong hydrogen bonds in ammonia, more energy (heat) is required to boil water. Because of the high electronegativity of nitrogen than chlorine, bond between N−H is stronger than bond between H−Cl. Therefore boiling point of NH3 is more than HCl.

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Why does H2O have a higher boiling point than H2S?

It’s due to the higher electronegativity of Oxygen than Sulphur that it makes Intermolecular Hydrogen bonds with the Hydrogen Atoms of Other water molecules thus the Boiling Point of H2O increases and is much higher than that of H2S. Van der Waal forces between the molecules.

Why does water have an unexpectedly high boiling point?

Yes, the “unexpectedly high” boiling point of water, for its size, is due the strong intermolecular forces between water molecules (hydrogen bonds).

Does boiling break the hydrogen bonds in water?

Answer Wiki. Actually no. When water is boiled the OH bonds are not broken, the water molecules just move away from one another enough that they become a gas. No bonds in between atoms are broken, just the bonds in between water molecules, in this case hydrogen bonding.

Why is the melting point of hydrogen sulfide higher than water?

Why is the melting point of water (0°C) higher than that of hydrogen sulphide (-83°C)? In short, because the intermolecular forces holding the molecules together in a rigid, solid structure are much weaker in hydrogen sulfide than in water.