Q.

For the given hypothetical reactions, the equilibrium constants are as follows:

XY; K1=1.0

YZ;K2=2.0

ZW;K3=4.0

The equilibrium constant for the reaction XW is                                        [2024]

1 12.0  
2 6.0  
3 8.0  
4 7.0  

Ans.

(3)          

              On adding reactions, equilibrium constants are multiplied

                XY,K1=[Y][X]

                YZ,K2=[Z][Y]

                ZW,K3=[W][Z]

            ___________________

            Adding all three:

           XW,K=[W][X]=[W][Z][Y][Z][Y][X]=K1K2K3=1×2×4=8