At what temperature the density of water is maximum? State it's value.
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The density of water is maximum at 4°C. It's value is 1000 kg m-3.
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Name two substances which contract on heating.
What do you mean by anomalous expansion of water?
Deep pond of water has it's top layer frozen during winter. State the expected temperature of water layer (i) just in contact with ice, (ii) at the bottom of pond.
Distinguish between heat and temperature.