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Q. The initial volume of a gas cylinder is 750.0 \,mL. If the pressure of gas inside the cylinder changes from $840.0 \,mm$ Hg to 360.0 mm Hg, the final volume the gas will be :

JEE MainJEE Main 2014States of Matter

Solution:

$P_{1} V_{1}=p_{2}v_{2}$

$\Rightarrow 840\times752=360\times v_{2}$

$\Rightarrow v_{2}=\frac{840\times750}{360}$

$= 1750 \,ml $

$= 1.75\, L$