why water expands on coolong?don't say due to anomalous behaviour of water,,,,,this much I also know
Answers
Answer:
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Answer:
because
Explanation:
It contracts when cooled, down to a temperature of 4°C but thereafter begins to expand as it reaches 0°C and turns into ice.
Water attains its maximum density at 4°C. This is caused by the hydrogen bonding between the oxygen atoms that are negatively charged and the hydrogen atoms that are positively charged, from two different molecules of water. The density of ice is lower, and so it floats on water. This anomalous expansion of water is an abnormal property of water whereby it expands instead of contracting when the temperature goes from 4°C to 0°C, and it becomes less dense. The density becomes less as it freezes because molecules of water normally form open crystal structures when in solid form. Water is denser than ice while almost all the other substances are denser in solid form than in liquid form.