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21 September, 00:31

Explain the high surface tension and low vapor pressure of water in terms of the structure of the water molecule and hydrogen bonding

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  1. 21 September, 00:59
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    High surface tension depends on hydrogen bonding.

    Explanation:

    ▪ In water molecule, the oxygen atom carries a charge of partial negative charge, while the hydrogen atoms carries a charge of partial positive charge.

    ▪ Hydrogen bonding between water molecules is responsible for its high surface tension, low vapor pressure.

    ▪ When many water molecules form hydrogen bonds with other water molecules, they form a lattice of water molecules, which is very strong and flexible. Due to this there is high surface tension in the water molecules.

    ▪ Surface tension is what allows water striders to move across the surface of water.

    ▪ Vapor pressure is inversely related to intermolecular forces, so those with stronger intermolecular forces have a lower vapor pressure.
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