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Question 30827
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Elasticity, Thermal Expansion, Calorimetry and Heat Transfer: Anomalous Expansion MCQ

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Anomalous ExpansionMediumQuestion 30827

Question

Water has maximum density at:
  1. A
    0°C
  2. B
    4°C
    Correct
  3. C
    100°C
  4. D
    −4°C

Correct answer

4°C

Explanation

Water contracts on heating from 0 to 4°C, then expands. Maximum density at 4°C is due to hydrogen bonding restructuring.

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