Air and Water
The melting point of most of the solid substances increases with an increase in pressure. However ice melts at a temperature lower than its usual melting points when pressure is increased. This is because:
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Single Choice
Liquid water is denser than ice due to:
Ahigher surface tension
Bhydrogen bonding
Correct Answer
Cvan der Waals forces
Dcovalent bonding
Solution
Due to inter-molecular hydrogen bonding, ice forms hexagonal three dimensional crystal lattice in which almost half the space is unoccupied. When ice melts, some of the hydrogen bonds are broken and some of the empty space is occupied by water molecules. Hence, liquid water is higher density than ice.
SIMILAR QUESTIONS
Air and Water
Liquid water is denser than ice due to:
Air and Water
The maximum number of hydrogen bonds formed by a water molecule in ice is:
Air and Water
What is not true about ice?
Air and Water
When ice melts to form liquid water at $$0^0C$$, there is a contraction in volume. This is due to :
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