Hydrogen iodide decomposes to form hydrogen and iodine, like this: 2 HI(g) → .H₂(g) + 1₂(9) Also, a chemist finds that at a certain temperature the equilibrium mixture of hydrogen iodide, hydrogen, and iodine has the following composition: compound pressure at equilibrium HI 27.1 atm H₂ 15.7 atm 1₂ 39.1 atm

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Hydrogen iodide decomposes to form hydrogen and iodine, like this:
2 HI(g) → H₂(g) + 1₂ (9)
Also, a chemist finds that at a certain temperature the equilibrium mixture of hydrogen iodide, hydrogen, and iodine has the following composition:
compound pressure at equilibrium
HI
27.1 atm
H₂
12
Calculate the value of the equilibrium constant K for this reaction. Round your answer to 2 significant digits.
K₁₂ = []
15.7 atm
39.1 atm
S
Transcribed Image Text:Hydrogen iodide decomposes to form hydrogen and iodine, like this: 2 HI(g) → H₂(g) + 1₂ (9) Also, a chemist finds that at a certain temperature the equilibrium mixture of hydrogen iodide, hydrogen, and iodine has the following composition: compound pressure at equilibrium HI 27.1 atm H₂ 12 Calculate the value of the equilibrium constant K for this reaction. Round your answer to 2 significant digits. K₁₂ = [] 15.7 atm 39.1 atm S
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