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N(2)O(4) is 25% dissociated at 37^(@)C a...

`N_(2)``O_(4)` is `25%` dissociated at `37^(@)C` and one atmosphere pressure. Calculate (i) `K_(p)` and (ii) the percentage dissociation at 0.1 atm and `37^(@)C`

Text Solution

Verified by Experts

`N_(2)O_(4) rarr 2NO_(2)`
`K_(p) = 4alpha^(2)/1+alpha^(2) p = 4(0.25)^(2)/(1-(0.25)^(2)) = 0.26 atm`
When p = 0.10 atm
`0.26 = 4 alpha^(2)(0.1)/1-alpha^(2) implies alpha = 0.62`
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