Question

When the water is heated from $0$ to $10$, its volume
A. Increases
B. Decreases
C. Does not change
D. First decreases then increase

Answer 1

Every time density will increase the volume will decrease and when the volume increases the density of the material will decrease. Because the temperature of the substance rises the mean molecular distance is also more. From this concept, we choose the correct answer

Complete step by step solution:
While we heat water from ${0^\circ }C$, we see that on heating, the volume of water decreases as the density of water decreases. Then we can observe this effect of decreasing volume and increasing density, until ${4^\circ }C$, and the reason is the density of ice is maximum at ${4^\circ }C$. As a result after ${4^\circ }C$the density of the water reduces and hence the volume of the water increases.
The main reason for this occurrence is because the hydrogen bond in the ice gets broken due to the melting of ice. The temperature will also disturb the density of water. When a fixed volume of water is cooled or heated, its density changes. If we heat water, the water will expand, and its volume rises up. And we get to know that as the water gets warmer, its volume increases, and the density decreases, and the water tends to change itself from liquid to gaseous form.
So the correct option is option C, which is on heating from ${0^\circ }C$, the density of water rises up to ${4^\circ }C$ and then comes down beyond ${4^\circ }C$.
Hence, option D is the correct answer.

Note:
We should know that below ${4^\circ }C$ hydrogen bonding becomes more prominent and we also know that hydrogen bonds are generally longer than the typical distance between the water molecules at this temperature. Some other aspects affecting density also comprise salinity.