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Write the equilibrium constant expressio...

Write the equilibrium constant expressions for the following reactions.
`(i) BaCO_(3) (s) hArr BaO(s) + CO_(2)(g)`
`(ii) AgBr(s) hArr Ag^(+) (aq) +Br^(-) (aq)`
`(iii) CH_(3)COCH_(3)(l) hArr CH_(3)COCH_(3)(g)`
`(iv) Al(s)+3H^(+)(aq) hArr Al^(3+) (aq) + 3/2 H_(2)(g)`
`(v) HPO_(4)^(2-) (aq)+H_(2)O(l) hArr H_(3)O^(+) (aq) +PO_(4)^(3-) (aq)`

Text Solution

Verified by Experts

`(i) BaCO_(3)(s) hArr BaO(s) +CO_(2) (g)`
`K_(c) =[CO_(2)(g)] and K_(p) =pCO_(2)(g)`
`(ii) AgBr (s) hArr Ag^(+) (aq) + Br^(-) (aq)`
`K_(c) = [Ag^(+) (aq)][Br^(-)(aq)]`
`(iii) K_(c) =[CH_(3)COCH_(3) (g)] and K_(p) = pCH_(3) COCH_(3) (g)`
`(iv) Al(s) +3H^(+) (aq) hArr Al^(3+) (aq) +3//2 H_(2) (g)`
`K_(c) =([Al^(3+) (aq)][H_(2)(g)]^(3//2))/([H^(+)(aq)]^(3))`
`(v) HPO_(4)^(2-) (aq) +H_(2)O(l) hArr H_(3)O^(+) (aq) +PO_(4)^(3-) (aq)`
`K_(c) = ([H_(3)O^(+) (aq)][PO_(4)^(3-) (aq)])/([HPO_(4)^(2-)(aq)])`
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