ICSE-VIII-Physics
06: Heat Energy Class 8 Physics
- #37How does the density of a substance (solid, liquid and gas) change on heating ?Ans : Density = Mass/Volume
In case of solids, when temperature is increased, increase in volume is very small and decrease in density is not appreciable. In case of liquids and gases, as the temperature increases, volume increases by an appreciable amount and therefore decrease in their density is quite considerable.