Properties Of Solids And Liquids Question 417

Question: The density of water at 4C is1000.0kg/m3 and at 100C it is 958.4kg/m3 . The cubic expansively of water between these temperatures is

Options:

A) 4.5×103/K

B) 5.4×105/K

C) 4.5×104/K

D) 5.4×106/K

Show Answer

Answer:

Correct Answer: C

Solution:

[c] V=V0(1+αΔθ) where Δθ is the difference in temperature, α is the coefficient of volume expansion. i.e., VV0V01Δθ=α

α=md2md1m/d1.1Δθ=(d1d2)(d1d2)×d1Δθ

=(d1d2)(d1d2).d1Δθ=1000958.4958.4×96

=4.5×l04 per degree K.



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