Equilibrium - Result Question 28

####29. The reaction quotient (Q) for the reaction

N2(g)+3H2(g)→2NH3(g)

is given by Q=[NH3]2[N2][H2]3. The reaction will

proceed from right to left if

(a) Q=0

(b) Q=Kc

(c) Q<Kc

(d) Q>Kc

[2003]

where Kc is the equilibrium constant

Show Answer

Solution:

  1. (d) For reaction to proceed from right to left Q>Kc ( backward  rate )( forward  rate ) i.e the reaction will be fast in backward direction i.e rb>rf.

When Q=K, the system is at equilibrium Q<Kc, reaction shift to the right from left. Q>Kc, reaction proceed from right to left.

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