Questions
The coefficient of volume expansion of glycerine is 49 x . What is the fractional change in its density (approx.) for 30°C rise in temperature?
detailed solution
Correct option is A
Coefficient of volume expansion of glycerine.γ= 49×10-5/ 0CRise in temperature, ∆T = 30°CAs γ = 1∆T(∆VV) ⇒ ∆VV = γ×∆Tor ∆VV = (49×10-5)×30 = 0.0147Since mass remains constant,Fractional change in density = fractional change in volume = 0.0147 = 1.5 x 10-2Similar Questions
A vessel having coefficient of cubical expansion contains liquid Of coefficient of real expansion rR up to certain level. When Vessel
Is heated, match column I and column II.
Column - I | Column - II | ||
a | p | liquid level rises continuously from beginning | |
b | q | liquid level falls continuously from beginning | |
c | r | liquid level remains same | |
d | s | liquid level first falls and then rises |
a | b | c | d | |
1 | s | r | q | p |
2 | s | r | p | q |
3 | q | r | s | p |
4 | r | q | p | s |
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