2) The original volume of a liquid having expansion coefficient of 9.5 x 10-4 / ◦C was 4 litres. When heated it increased its volume by 190 ml. Calculate the rise in temperature of the liquid.
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2) The original volume of a liquid having expansion coefficient of 9.5 x 10-4 / ◦C was 4 litres. When heated it increased its volume by 190 ml. Calculate the rise in temperature of the liquid.
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Explanation:
Given the value of coefficient of volume expansion of 5×10
−4
K
−1
As, original density of glycerine
ρ=ρ
0
(1+YΔT)
⇒ρ−ρ
0
=ρ
0
YΔT
Thus, fractional change in the density of glycerin for a rise of 40
0
C in its temperature.
ρ
0
ρ−ρ
0
=YΔT=5×10
−4
×40
200×10
−4
=0.020
.Hence,