Q. 8 g of $O_{2},$ 14 g of $N_{2}$ and 22 g of $CO_{2}$ is mixed in a container of 10 L capacity at 27$℃$. The pressure exerted by the mixture in terms of atmospheric pressure is ($R = 0.082\ L\ atm\ K^{- 1}\ mol^{- 1})$

A) $1.4\ atm$
B) $2.5\ atm$
C) $3.7\ \ atm$
D) $8.7\ atm$
Explanation

(c) $p = \ \frac{n_{1}RT + n_{2}RT + n_{3}RT}{V}$
= $\left( n_{1} + n_{2} + n_{3} \right)\frac{RT}{V}$
= $\left( \frac{8}{16} + \frac{14}{28} + \frac{22}{44} \right) \times \ \frac{0.082\ \times 300}{10} = 3.69$ atm

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.

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