HARDMCQ SINGLENEET ChemistryPhysical ChemistryChemical EquilibriumAchiever Section
N₂O₄ 2NO₂, Kc = 4. This reversible reaction is studied graphically as shown in the given figure. Select the correct statement out of I, II and III. I : Reaction quotient has maximum value at point A II : Reaction proceeds left to right at a point when [N₂O₄] = [NO₂] = 0.1 M III : Kc = Q when point D or F is reached :
A.I, II
B.II, III✓ Correct
C.II
D.I, II, III
Explanation
Exp: 2 4 2 C N O 2NO ;K 4 Concentration A C B D E NO₂ N₂O₄ F G Time CHEMICAL EQUILIBRIUM 67 At D and F, equilibrium point reached; so Q = K at this point 2 2 2 4 NO Q = N O 2 3 I I I Q is maximum only when conc. of 2 NO is maximum
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