Question

What is the density of $N_2$ gas at $227°C$ and 5.00 atm. pressure ? (R = 0.082 L Atm $K^{-1}mo{l}^{-1}$)

• A. 1.40 g/mL
• B. 2.81 g/mL
• C. 3.41 g/mL
• D. 0.29 g/mL

Answer 1

Answer: (C)

Given,
$P=5atm$
$T=500K$
$M=28g/mol$
We know,
$\rho =\frac{PM}{RT}$
$\rho =\frac{5\times 28}{0.0821\times 500}$
$\rho =3.41g/ml$