Hydrogen Iodide Undergoes Decomposition According to the Equation

question 38

Multiple Choice

Hydrogen iodide undergoes decomposition according to the equation
2HI(g)
H₂(g) + I₂(g)
The equilibrium constant K_p at 500 K for this equilibrium is 0.060.Suppose 0.811 mol of HI is placed in a 1.50-L container at 500 K.What is the equilibrium concentration of H₂(g) ?
(R = 0.0821 L ∙ atm/(K ∙ mol) )

• A)0.21 M
• B)0.13 M
• C)4.3 M
• D)0.039 M
• E)0.1 M

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Definitions:

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