Question

if temperature decreases below what degree celsius water starts expanding abd water became lighter due to decrease it density it moves upword in the cylinder and the temperature of upper part of water column decreases to 0 degrees Celsius
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Answer 1

Answer:

If the temperature goes below 4 degree celcius, the hydrogen bonds become weaker and the water molecules begin to drift apart, results in decrease in density. this allows the the movement of water in the upward direction and deceases the water column to 0 degree celcius. Hence, the correct answer is 4 degree celcius.

Answer 2

Answer:

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