Question6
Answer
[I2] = 0.0023
Explanation
2IBr(g) < - - - - - > I2(g) + Br2(g)
K = [I2] [Br2] / [IBr]2 = 0.012
at equilibrium
[I2] = x
[Br2] = x
[IBr] = 0.026 - 2x
Therefore,
x2/(0.026 - 2x)2 = 0.012
x/(0.026 - 2x) = 0.10954
x + 0. 21908x = 0.002848
1.21908x = 0.002848
x = 0.002336
[ I2] = 0.0023
Question7
2A <- - - - - - > 3B
K = [A]2/[B]3
at equlibrium
[A] = 0.2 - 2x
[B] = 3x
At equillibrium [A] = 0.2 - 0.09 = 0.11
0.2 - 2x = 0.11
- 0.2x = - 0.09
x = 0.45
[B] = 3x = 3*0.45 = 1.35
K = (1.35)3/(0.11)2
= 203
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