For the reaction
I2(g) + Br2(g) ⇌ 2 IBr(g)
A vessel initially contains 2.50 M I2 and 2.50 M Br2. Determine the equilibrium concentration of IBr if KC for the reaction at this temperature is 3.27.
I2 + Br2 2IBr
Initial 2.5 2.5 ------------0
Final 2.5 –x 2.5-x ----------2x
Kc = [IBr]2/[I2][Br2] = (2x)2/[(2.5-x)(2.5-x)] = 3.27
(2x)/(2.5-x) = 1.19
[IBr] = 2x = 2.37 M
For the reaction I2(g) + Br2(g) ⇌ 2 IBr(g) A vessel initially contains 2.50 M I2...
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