(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

At 627 C and 1 atm pressure, SO3 partially dissociated into SO2 and O2 by SO3--->SO2 +1/2O2. The density of equilibrium mixture is 0.925g/L. What is the degree of dissociation?

2. Relevant equations

3. The attempt at a solution

I found out the average molecular weight of the mixture by the formula PM=DRT

where D is the density.

Then, average molecular weight = sum of product of mole fractions and molar mass

moles at equilibrium-

SO3- 1-x

SO2- x

O2- x/2

But I did not get correct answer.

The answer is 0.34

Please provide a detailed explanation

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# Homework Help: What is the degree of dissociation?

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