Correct option is : (e) [COBr2] = 0.37 M, [CO] = 0.26 M, [Br2] = 0.26 M
Explanation
Given : initial concentration of COBr2 = 0.63 M
Kc = 0.19
ICE table | COBr2 (g) | ![]() |
CO (g) | Br2 (g) |
Initial conc. | 0.63 M | 0 | 0 | |
Change | -x | +x | +x | |
Equilibrium conc. | 0.63 M - x | +x | +x |
Kc = [CO]eq[Br2]eq / [COBr2]eq
0.19 = [(x) * (x)] / (0.63 M - x)
Solving for x, x = 0.264 M
[CO]eq = [Br2]eq = x = 0.26 M
[COBr2]eq = 0.63 M - x
[COBr2]eq = 0.63 M - 0.26 M
[COBr2]eq = 0.37 M
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