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Density

A vessel cont...

Question

A vessel contains a mixture of $7 g$ of nitrogen and $8 g$ of oxygen at temperature $T = 300 K$ . If the pressure of the mixture is $1 a t m$ , its density is
$[R = \frac{25}{3} J / m o l K]$

0.6 k g / m^{3}

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1.2 k g / m^{3}

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1.5 k g / m^{3}

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2 k g / m^{3}

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Solution

The correct option is B $0.6 k g / m^{3}$
Molar mass of mixture $= \frac{t o t a l m a s s}{t o t a l m o l e}$
$M = \frac{15}{\frac{4}{14} + \frac{8}{16}} = 15 M = 15 P M = ρ R T ρ = \frac{1 (15) \times 10^{- 3}}{(\frac{25}{3} 300)} ρ = \frac{15}{25} = \frac{3}{5} = 0.6 k g / m^{3}$

Suggest Corrections

Similar questions

m^{3}

m_{1} = 7 k g

(M_{1} = 28)

m_{2} = 11 g

(M_{2} = 44)

T = 300 K

P_{0} = 1 a t m

4 g

8 g

P = 1.01 \times 10^{5} Pa

T = 273 K

(= 1.01 \times 10^{5} N / m^{2})

(R = 8.31 J / m o l - K)

600 K

0.32 k g / m^{3}

1.414

O_{2}

Z

R = \frac{1}{12} l a t m / m o l K; \frac{25}{3} J / m o l K

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