Question

6. Which one is correct about expansion of water?

A) its density is minimum at 4°c. B)
its volume is maximum at 4°c.
C)
its expands when heated from 0°c to 4°c
D)
its has its minimum volume at 4°c
7. If a hole is bored on a sheet of metal. When the sheet is heated, the hole
A) increases in size.
B) decreases in size. C)
remains the same in size
D) no one can tell

Answer 1

Option A) its density is minimum at 4°C is correct about the expansion of water.

Step-by-step explanation:

Out of the given options, option A) its density is minimum at 4°C is correct about the expansion of water.

When water is heated from 0°C to 4°C, it contracts and becomes denser. However, once it reaches 4°C, it starts expanding and the density decreases.

Therefore, at 4°C, water has its minimum density, which means its maximum volume.

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