Hydrogen Iodide Decomposes According to the Equation 2HI(g)

question 30

Multiple Choice

Hydrogen iodide decomposes according to the equation 2HI(g) H₂(g) + I₂(g) , for which K_c = 0.0156 at 400ºC.0.550 mol HI was injected into a 2.00 L reaction vessel at 400ºC.Calculate the concentration of H₂ at equilibrium.

• A)0.275 M
• B)0.138 M
• C)0.0275 M
• D)0.0550 M
• E)0.220 M

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