At which temperature does water have maximum density?
Correct answer: B. 4°C
- A. 2°C
- B. 4°C
- C. 0°C
- D. <0°C
Explanation
When water is at 0 ° C , it takes a cage-like structure, and thus the volume increases which results in the density decrease. The temperature of the water increases and gets to 4 ° C , here, the density is maximum. The reason behind this is that the cage-like structure starts to break and come closer Option A,C and D are incorrect
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About Anomalous Behaviour of Water
Water expands when cooled below 4°C and when it freezes, giving liquid water its maximum density at 4°C. The explanation depends on hydrogen bonding and the open structure of ice, which makes ice less dense than water and allows it to float.
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