Question

Question } =>

$\bf{At \: 4°C , density \: of \: water } \\ \bf{\: is \: ?}$

Answer 1

Answer:-

Water that is pure distilled water with no dissolved contaminants will have a density of 0 .9999720 grams per cubic centimeter (milliliter) at a temperature of 4 degrees Celsius. This is water’s maximum density. At 100 degrees celsius the density becomes 0.9584 grams per cubic centimeter. This is water at 100 degrees before it becomes vapor at 100 degrees.

Answer 2

Solution:

Density of water is maximum atc4°c which is 0.9 g/per unit volume.

This happen due to hydrogen bonding.

We know that if we increase the temperature then density decrease.

But, in case of water, When we heat water the H- bonding between molecules distraction is not much.
But if we increase the temperature from 4° c then temperature factor is greater than hydrogen bonding interaction.

Now, This hydrogen bond also form in Ice.
Then question arise why not this happen in Ice.

The reason is simple, There is repulsion between same charge when the come closer.

Thus, it perfect condition at 4°c for water. so it is most denser at 4°c

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Amrit⭐