Question

Water is an important molecule for life on Earth to exist. Water is known to have unique properties like high heat of vaporization that helps moderate the temperature of the ecosystem. It also has high surface tension and high boiling point. In relation to our topic, what do you think is behind the molecules of water that makes these properties possible? Explain and support your answer.​

Answer 1

Hydrogen bonding in water molecules are responsible for the unique properties of water.

Water is a molecule composed of hydrogen and oxygen atoms. Oxygen is highly electronegative. This leads to the introduction of polarity in the O-H bond in water. Hydrogen bonding occurs in a molecule when hydrogen is bonded to highly electronegative atom.

As a result of this polarity and consequent hydrogen bonding due to the hydrogen - oxygen bond, water molecules have several unique properties such as high heat of vaporization, high surface tension and high boiling point.

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