Question
Download Solution PDFThe coefficient of volume expansion of glycerine is 49 × 10-5 K-1. Find the fractional change in its density for a 20° C rise in temperature?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCONCEPT
According to the formula for the increase in volume due to temperature change
Where γ = coefficient of volume expansion
ΔT is the change in volume
V0 and Vf are the initial and final volumes respectively
CALCULATION
Given: γ = 49 × 10-5K-1, ΔT = 20oC
Now
Vf = V0(1+ 49 × 10-5× 20)
For the change in density
the fractional change in density
\
The negative sign represents there is a decrease in the density of the glycerine.
Hence the correct answer is 0.98 × 10-2
Last updated on Jun 19, 2025
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