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Home  >>  JEEMAIN and AIPMT  >>  Physics  >>  Class11  >>  Thermodynamics
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A glass bottle weighs 50 g 1040 g then filled with a liquid at $\;0^{0}C\;$ . When it is at $\;100^{0}C\;$ , 10 g of the liquid overflows . If $\;\gamma_{r}=2 \times 10^{-4}/^{0}C\;$ , find the coefficient of linear expansion of container .

$(a)\;\large\frac{1}{3}\times 10^{-4}/^{0}C\qquad(b)\;3\times 10^{-4}/^{0}C\qquad(c)\;6\times 10^{-4}/^{0}C\qquad(d)\;1\times 10^{-4}/^{0}C$

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1 Answer

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Answer : $\;\large\frac{1}{3}\times 10^{-4}/^{0}C$
Explanation :
Weight of liquid = 990 g
$\gamma_{A} = \large\frac{weight expelled}{weight \;remaing \times \bigtriangleup t}$
$=\large\frac{10}{980 \times 100}=\large\frac{1}{9800}= 1.020 \times 10^{-4} /^{0}C$
$\gamma_{r} = 2 \times 10^{-4}/^{0}C$
$\gamma_{c} = \gamma_{r} - \gamma _{A} = 0.98 \times 10^{-4}$
$\alpha_{c} = \large\frac{0.98}{3}\times 10^{-4} = \large\frac{1}{3} \times 10^{-4} /^{0}C$
answered Mar 24, 2014 by yamini.v
 

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