For the following system, the equilibrium constant at 445°C is 51.0. If a reaction is initiated with the following initial concentrations, [H2] = 2.06 × 10−2 M, [I2] = 1.45 × 10−2 M, and [HI] = 0, what will be the equilibrium concentration of HI?

For the following system, the equilibrium constant at 445°C is 51.0. If a reaction is initiated with the following initial concentrations, [H2] = 2.06 × 10−2 M, [I2] = 1.45 × 10−2 M, and [HI] = 0, what will be the equilibrium concentration of HI?



H2(g) + I2(g) 2HI(g)

a. 1.8 × 10^−2 M
b. 1.4 × 10^−1 M
c. 2.7 × 10^−1 M
d. 2.6 × 10^−2 M
e. 3.7 × 10^−3 M


Answer: d. 2.6 × 10^−2 M


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