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Home  >>  JEEMAIN and AIPMT  >>  Chemistry  >>  Equilibrium
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Specify the unit of Equlibrium Constant of the following reaction.

 

$ Fe^{3+} (aq) + SCN^- (aq) \rightleftharpoons Fe(SCN)^{2+} (aq) $

 

(a) $ L mol^{-3} $

(b) $ L mol^{-1} $

(c) $L$

(d) $ mol^{-1} $

Can you answer this question?
 
 

1 Answer

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$ Fe^{3+} (aq) + SCN^- (aq) \rightleftharpoons Fe(SCN)^{2+} (aq) $
K = $ \frac { [FeSCN^{2+} (aq)] } { [Fe^{3+} (aq)] [SCN^- (aq)] }$
Thus, Units = $ \frac {(mol L^{-1})} {(mol L^{-1})(mol L^{-1})} = L mol ^{-1} $
answered Nov 13, 2013 by mosymeow_1
 

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