Question

The density of which of the following will get affected by changing the temperature.

• A. iron
• B. water
• C. $C{O}_2$
• D. None of the above

Answer 1

Answer: (A), (B), (C)

The correct options are
A

iron

B

water

C

$C{O}_2$

Generally matters (solid, liquid and gases ) expand on heating and contract on cooling, expansion or contraction means a change in volume which will lead to change in density.

In solids, the expansion/contraction with change in temperature is less as compared to liquid and gases, so the density of solids doesn't change much.

But for liquids and gases, the expansion/contraction is more, so their volume changes leading to change in density as well.

If the volume increases the density decreases and if the volume decreases the density increases.