'x' g of molecular oxygen(O2) is mixed with 200g of neon (Ne). The total pressure of the non-reactive mixture of O2 and Ne in the cylinder is 25 bar. The partial pressure of Ne is 20 bar at the same temperature and volume. The value of 'x' is_________.

Po2 = PTotal - PN2 = 25 – 20 = 5bar Po2 = nO2nO2+nNe*PTotal 5= (x/32x/32+20020)*25⇒x=80gm

'x' g of molecular oxygen(O₂) is mixed with 200g of neon (Ne). The total pressure of the non-reactive mixture of O₂ and Ne in the cylinder is 25 bar. The partial pressure of Ne is 20 bar at the same temperature and volume. The value of 'x' is_________.

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Payal Gupta | Contributor-Level 10

6 months ago

Po₂ = P_Total - $P_{N_{2}}$

= 25 – 20 = 5bar

Po₂ = $\frac{n_{O_{2}}}{n_{O_{2}} + n_{N e}} * P_{T o t a l}$

$5 = (\frac{x / 32}{x / 32 + \frac{200}{20}}) * 25 \Rightarrow x = 80 g m$

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