question_answer

The equilibrium constant for the reaction \[W+X\rightleftharpoons Y+Z\] is 9.Ifone mole of each of w and x are mixed and there is no change in volume, the number of moles of y formed is

A) 0.10 

B) 0.50 

C) 0.75 

D) 0.54

Correct Answer: C

Solution :

[c] Initial At eqn. \[{{K}_{ep}}=9=\frac{{{\alpha }^{2}}}{{{(1-\alpha )}^{2}}}\] \[\therefore \text{ }\alpha =0.75\] Moles of \[Y=0.75\]