# A sample of pure NO2 is heated to 334 ∘C at which temperature it partially dissociates according to the equation2NO2(g)⇌2NO(g)+O2(g)At equilibrium the density of the gas mixture is 0.520 g/L at 0.750 atm .Calculate Kc for the reaction.

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A sample of pure NO2 is heated to 334 ∘C at which temperature it partially dissociates according to the equation
2NO2(g)⇌2NO(g)+O2(g)
At equilibrium the density of the gas mixture is 0.520 g/L at 0.750 atm .
Calculate Kc for the reaction.

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Step 1

The given equilibrium contains gaseous species. The number of moles of different species at different times may be written as;

Step 2

Using ideal gas equation for the mixture at equilibrium,

Step 3

The molecular mass (M) of the mixture o...

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