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Question

Consider the reaction 2SO2(g)+O2(g)2SO3(g) for which Kc=278M1. 0.001 mole of each of the reagents SO2(g), O2(g) and SO3(g) are mixed in a 1.0 L flask. Determine the reaction quotient of the system and spontaneous direction of the system.
  1. Qc=1000; the equilibrium shifts to the left
  2. Qc=1000; the equilibrium shifts to the right
  3. Qc=0.001; the equilibrium shifts to the right
  4. Qc=0.001; the equilibrium shifts to the left

A
Qc=0.001; the equilibrium shifts to the left
B
Qc=1000; the equilibrium shifts to the right
C
Qc=1000; the equilibrium shifts to the left
D
Qc=0.001; the equilibrium shifts to the right
Solution
Verified by Toppr

2SO2(g)+O2(g)2SO3(g)

Q=[SO3]2[SO2]2[O2]

Q=(0.001)2(0.001)2(0.001)

Q=10.001

Qc=1000

Qc>Kc

Thus, reaction shifts in backward direction i.e. towards left.

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Q1
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Q2
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