How does the density of water change when :- (i) it is heated from 0 degree C to 4degree C
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Answer:
Increases
Explanation:
It increases .this is called anomalous behaviour of water .as water has its highest at this temp.i.e 4'c .this happens due to hydrogen bonding present in water .this is the phenomenon which helps fishes survive in water during winter when the top layer of water is at 0'c while water having 4'c temp high density one is at the bottom in liquid state
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(a) water contracts on heating from 0°C to 4°C and expands on heating above 4°C.
(b) The density of water is maximum at 4°C. It decreases when it is cooled from 4°C to 0°C or it is heated above 4°C.
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