Consider the exothermic reaction 2SO 2(g) + O 2(g) (\rightarrow\)SO 3(g) . If the temperature

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Consider the exothermic reaction 2SO2(g) + O2(g) (\rightarrow\)SO3(g). If the temperature of the reaction is reduced from 600°C to 300°C and no other changes take place then

  • A) the reaction rate increases
  • B) concentration of SO3 decreases
  • C) concentration of SO3 ?increases
  • D) SO2 gas becomes unreactive

Correct Answer: C) concentration of SO3 ?increases

Explanation

The given reaction is an exothermic reaction, which means it releases heat:

2SO\(_{2(g)}\) + O\(_{2(g)}\) \(\rightarrow\) 2SO\(_{3(g)}\) + heat

According to Le Chatelier's principle, if a change is applied to a system at equilibrium, the system will adjust itself to counteract the change and re-establish equilibrium. In this case, the temperature of the reaction is reduced from 600



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