BITSAT 2018 Paper

Section: Chemistry

Question : 51 of 150

Marks: +1, -0

When N2O5 is heated at certain temperature, it dissociates as
N2O5 (g) ⇌ N2O3 (g) + O2 (g) ; KC = 2.5 . At the same time N2O3 also decomposes as :
N2O3 (g) ⇌ N2O (g) + O2 (g). If initially 4.0 moles of N2O5 aretaken in 1.0 litre flask and allowed to dissociate. Concentration of O2 at equilibrium is 2.5 M. Equilibrium concentration of N2O5 is :

1.0 M
1.5 M
2.166 M
1.846 M

Validate

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