A beaker is completely filled with water at 4oC. It will overflow if
A
Heated above 4∘C
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B
Cooled below 4∘C
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C
Both heated and cooled above and below 4∘C, respectively
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D
None of these
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Solution
The correct option is C Both heated and cooled above and below 4∘C, respectively Water has maximum density at 4∘C, so if the water is heated above 4∘C or cooled below 4∘C density decreases i.e., volume increases. In other words, it expands so it overflows in both the cases.
Curve between density of water and temperature.