Properties Of Solids And Liquids Question 490

Question: If on heating liquid through 80°C, the mass expelled is (1/100)th of mass still remaining, the coefficient of apparent expansion of liquid is [RPMT 2004]

Options:

A) 1.25 ´ 10?4/°C

B) 12.5 ´ 10?4/°C

C) 1.25 ´ 10?5/°C

D) None of these

Show Answer

Answer:

Correct Answer: A

Solution:

$ {\gamma _{\text{app}\text{.}}}=\frac{\text{Mass expelled}}{\text{Mass remained}\times \Delta T} $

$ =\frac{x/100}{x\times 80}=\frac{1}{8000}=1.25\times {{10}^{-4}}/{}^\circ C $



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