Coefficient of volume expansion of glycerin, αV = 49 × 10–5 K–1
Rise in temperature, ΔT = 30°C
Fractional change in its volume = ΔV/V
This change is related with the change in temperature as:
Fractional change in the density of glycerin = 49 ×10–5 × 30 = 1.47 × 10–2