chem12
posted by George .
2HI(g)H2(g) + I2(g) k eq= 8.0
2.0 mol of HI are placed in a 4.0L container, and the system is allowed to reach equilibrium. Calculate the equilibrium concentration of all three gases
Initial
2HI=0.5 mol/L
H2= 0
I2=0
change
2HI= 2x
H2= x
I2=x
equilibrium
2HI= 0.52x
H2= x
I2=X
k eq= product/reactants
8.0= (x)(x)/ 0.52x
2.8=x/0.52x
x=0.21
so 0.21 mol/L of H2 and I2
HI= 0.42 0.52(0.21) = 0.08mol/L
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