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The maximum density of water occurs at a temperature of 

Physics
WAEC 2017

The maximum density of water occurs at a temperature of 

  • A. 0°C
  • B. 4°C
  • C. 37°C
  • D. 273°C
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Correct Answer: Option B
Explanation

This is as a result of the Hydrogen bonding in water. Due to the high Kinetic Energy of water, the hydrogen bonds can't hold for too long but from 4°C, there's an increase in the hydrogen bonds hence strenghtening it.  From the point of production of more hydrogen bonds, the bonding is no longer easily broken. Generally, these and a few factors based on these cause the density of water to be maximum at 4°C.


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