Question

What happens to the density of a fluid on increasing its temperature?

• A. Density decreases
• B. Density increases
• C. Density remains the same.
• D. Density first increases then decreases.

Answer 1

The correct option is A Density decreases

Density is the ratio of mass to the volume of a substance.

$Density=\frac{Mass}{Volume}$

Density is inversely proportional to volume. On increasing the temperature, the volume of fluid increases. Hence, the density decreases.