Equilibrium Question 619

Question: If in the reaction $ N_2O_4=2NO_2,,\alpha $ is that part of $ N_2O_4 $ which dissociates, then the number of moles at equilibrium will be [MP PET 1990; MH CET 2001; KCET 2005]

Options:

A) 3

B) 1

C) $ {{(1-\alpha )}^{2}} $

D) $ (1+\alpha ) $

Show Answer

Answer:

Correct Answer: D

Solution:

$ \underset{(1-\alpha )}{\mathop{\underset{1}{\mathop{N_2O_4}},}}, $ ⇌ $ \underset{2,\alpha }{\mathop{\underset{0}{\mathop{2NO_2}},}}, $ total mole at equilibrium $ =(1-\alpha )+2\alpha $

$ =1+\alpha $



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