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K(c) for the reaction N(2)(g)+3H(2)(g)...

`K_(c)` for the reaction
`N_(2)(g)+3H_(2)(g)hArr2N_(3)(g)` is 0.5 at `400K` find `K_(p)`

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`N_(2)(g)+3H_(2)hArr2NH_(3)(g)`
`K_(c)=0.5,T=400K, Deltan=2-4=-2`
`K_(p)=K_(c)[RT]^(Deltan)`
`K_(p)=0.5/([0.0831xx400]^(2))=4.647xx10^(-4)`
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