Question

explain why water is at liquid state in room temprature

Answer 1

Water is liquid at room temperature because of having a strong permanent dipole. As you said known as hydrogen bonding. The electrons are closer to oxygen than they are to hydrogen thus creating this partial positive and negative dipole. The difference between electronegativity is so high between the atoms of oxygen and hydrogen, thus being called a hydrogen bond, it's a special case of dipole dipole. Hydrogen bond is a type of intermolecular force and is the strongest. Water has hydrogen bond and London dispersion forces. London dispersion forces are present in all compounds. They create a temporary dipole moment.

Why is water liquid at room temperature?

Molecules are closer together
Contains London dispersion forces
Has a low Vapor pressure because of hydrogen bonding

For Solid Ice: molecules are even closer & have more hydrogen bonding.

Answer 2

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