Shift Equilibrium: 2NOBr -> 2NO + Br2 - Which Option?

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The discussion centers on the equilibrium shift of the exothermic reaction 2NOBr (g) <-> 2NO (g) + Br2 (g). Adding more NOBr will shift the reaction to the left, according to Le Chatelier's principle. Decreasing the temperature and increasing the container volume do not favor the reverse reaction. The correct answer to the posed question is option (a), adding more NOBr.

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Soaring Crane
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The decomposition of nitrosyl bromide is exothermic: 2NOBr (g) <-> 2NO (g) + Br2 (g). Which of the following changes in reaction condition will shift the reaction to the left?


a. add more NOBr

b. decrease the temperature

c. increase the container volume

d. none of these

Is this right? Thanks.
 
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Yep, it's right.
 

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