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water has maximum density at 4 *C . why?

Class 11 Chemistry in Class 11 . 2 years ago

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When temp.raise from0*c to 4*c then hydrogen bonds start collapsing &thus molecules start to coming together that result in decrease of volume &hence increase in density. This happens up to 277k or 4*c after increase in volume of water becomes much more than decrease in volume due to breaking of H-bond. Thus after 4*c there is net increase in volume which means decrease in density. Hence density of water is maximum at 4*c.
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Posted on 19 Oct 2022, this text provides information on Class 11 related to Chemistry in Class 11. Please note that while accuracy is prioritized, the data presented might not be entirely correct or up-to-date. This information is offered for general knowledge and informational purposes only, and should not be considered as a substitute for professional advice.

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