Sulfur trioxide, used to manufacture sulfuric acid, is obtained commercially from sulfur dioxide. SO2(g) + O2(g) ↔ SO3(g) The equilibrium constant Kc for this reaction is 4.17x10-2 at 727°C. At 727°C, the reaction mixture contains 0.20 M SO2, 0.10 M O2, and 0.40 M SO3. Which of the following statements is true concerning this reaction   Q is greater than Kc so the reaction will go from left to right.   Q is greater than Kc so the reaction will go from right to left.   Q is less than Kc so the reaction will go rrom left to right.   Q is less than Kc so the reaction will go from right to left.   Q is equal to Kc   so the reactionis at equilibrium.

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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Sulfur trioxide, used to manufacture sulfuric acid, is obtained commercially from sulfur dioxide.

SO2(g) + O2(g) ↔ SO3(g)

The equilibrium constant Kc for this reaction is 4.17x10-2 at 727°C. At 727°C, the reaction mixture contains 0.20 M SO2, 0.10 M O2, and 0.40 M SO3. Which of the following statements is true concerning this reaction

 

Q is greater than Kc so the reaction will go from left to right.

 

Q is greater than Kc so the reaction will go from right to left.

 

Q is less than Kc so the reaction will go rrom left to right.

 

Q is less than Kc so the reaction will go from right to left.

 

Q is equal to Kc   so the reactionis at equilibrium.

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