The mass of oxygen gas occupy a volume of 11.2 lit at a temperature 27°C and a pressure of 76 cm of mercury in kilogram is (molecular weight of oxygen =32)

Question

The mass of oxygen gas occupy a volume of 11.2 lit at a temperature 27°C and a pressure of 76 cm of mercury in kilogram is (molecular weight of oxygen =32) (A) 0.001456 (B) 0.01456 (C) 0.1456 (D) 1.1456

Tardigrade Admin · Accepted Answer

PV =( m / M ) RT 11.2 × 10-3 × 1.01 × 105=( m /32 × 10-3) × 8.314 × 300 m =0.01456

Q. The mass of oxygen gas occupy a volume of 11.2 lit at a temperature $2 7^{\circ} C$ and a pressure of 76 cm of mercury in kilogram is (molecular weight of oxygen =32)

0.001456

0.01456

0.1456

1.1456

$P V = \frac{m}{M} RT$
$11.2 \times 1 0^{- 3} \times 1.01 \times 1 0^{5} = \frac{m}{32 \times 1 0 ^{- 3}} \times 8.314 \times 300$
$m = 0.01456$

Q. The mass of oxygen gas occupy a volume of 11.2 lit at a temperature 27∘C and a pressure of 76 cm of mercury in kilogram is (molecular weight of oxygen =32)