Answer
As Br2 is a product, the reaction shifts right.
Work Step by Step
Based on Le Chatelier's Principle, when a substance is added to one side of a reaction, the equilibrium shifts to the opposite side. The converse holds true.
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.