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At Elevated Temperatures, Hydrogen Iodide May Decompose to Form Hydrogen

Question 15

Multiple Choice

At elevated temperatures, hydrogen iodide may decompose to form hydrogen gas and iodine gas, as follows. 2HI(g) At elevated temperatures, hydrogen iodide may decompose to form hydrogen gas and iodine gas, as follows. 2HI(g)    H<sub>2</sub>(g)  + I<sub>2</sub>(g)  In a particular experiment, the concentrations at equilibrium were measured to be [HI] = 0.85 mol/L, [I<sub>2</sub>] = 0.60 mol/L, and [H<sub>2</sub>] = 0.27 mol/L. What is K<sub>c</sub> for the above reaction? A)  5.3 B)  0.22 C)  4.5 D)  0.19 E)  1.6 × 10<sup>2</sup> H2(g) + I2(g)
In a particular experiment, the concentrations at equilibrium were measured to be [HI] = 0.85 mol/L, [I2] = 0.60 mol/L, and [H2] = 0.27 mol/L. What is Kc for the above reaction?


A) 5.3
B) 0.22
C) 4.5
D) 0.19
E) 1.6 × 102

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