Solve this:
Q. For the reaction : P Q + R . Initially 2 mol of P was taken. Up to equilibrium 0.5 mol of P was dissociated. What would be the degree of dissociation :-
(1) 0.5
(2) 1
(3) 0.25
(4) 4.2

Dear Student,


                      P (g)           Q      +     RInitial               2                      0               0  At equil.       2-2α               2α             2αIn the question, it is given that 0.5 mol of P was dissociatedi.e. 2α=0.5or,α=0.25or, Degree of dissociation is 0.25Hence, correct answer is (3)

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