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 :

Question

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 : (A) 1.750 L (B) 3.60 L (C) 4.032 L (D) 7.50 L

Tardigrade Admin · Accepted Answer

P1 V1=p2v2 ⇒ 840×752=360× v2 ⇒ v2=(840×750/360) = 1750 ml = 1.75 L

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 :

1.750 L

3.60 L

4.032 L

7.50 L

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

$\Rightarrow 840 \times 752 = 360 \times v_{2}$

$\Rightarrow v_{2} = \frac{840 \times 750}{360}$

$= 1750 m l$

$= 1.75 L$

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