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Question

The value of coefficient of volume expansion of glycerin is 5×104K1 The fractional change in the density of glycerin for a rise of 40C in its temperature is:-

A
0.01
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B
0.015
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C
0.02
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D
0.025
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Solution

The correct option is C 0.02
Given the value of coefficient of volume expansion of 5×104K1
As, original density of glycerine
ρ=ρ0(1+YΔT)ρρ0=ρ0YΔT
Thus, fractional change in the density of glycerin for a rise of 400C in its temperature.
ρρ0ρ0=YΔT=5×104×40200×104=0.020
.Hence,
option C is correct answer.

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