Question

If the water at room temperature is cooled down to a temperature below freezing point, which of the following statements will be true?

• A. Water density will increase till 4 degrees Celcius
• B. Water density will decrease till 4 degrees Celcius
• C. Water density will increase below 4 degrees Celcius
• D. Water density will decrease below 4 degrees Celcius

Answer 1

Answer: (A), (D)

The correct options are
A

Water density will increase till 4 degrees Celcius

D

Water density will decrease below 4 degrees Celcius

This is because of anomalous Expansion of Water. When water is cooled down, its density decreases till 4-degree Celcius and then it starts increasing.