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# A gas occupies one litre under atmosphere pressure. What will be the volume of the same amount of gas under 750mm of Hg at the same temperature?

$(a)\;1013.3mL\qquad(b)\;101.33mL\qquad(c)\;10.133mL\qquad(d)\;None\;of\;these$

Given
$V_1 = 1 \;litre$
$P_1 = 1\;atm$
$V_2 = ?$
$P_2 = \large\frac{750}{760} atm$(at same T)
$\Rightarrow P_1V_1 = P_2V_2$
$\Rightarrow 1\times1 = \large\frac{750}{760}\times V_2$
$V_2 = 1.0133 \;litre$
$\;\;\;\;=1013.3mL$