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For the Reaction 2 SO2 (G)+ O2 (G)⇌ 2 SO3

Question 31

Multiple Choice

For the reaction 2 SO2 (g) + O2 (g) ⇌ 2 SO3 (g) ,Kc = 2.8 × 102 at 1000 K.If a vessel is filled with these gases such that the initial concentrations are [SO2] = 0.025 M,[O2] = 0.035 M,and [SO3] = 0.046 M,in which direction will a reaction occur and why?


A) toward products because Qc = 53
B) toward reactants because Qc = 0.019
C) toward products because Qc = 97
D) toward reactants because Qc = 2.8 × 103
E) it is at equilibrium because Qc = 1

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