Ammonium Iodide Dissociates Reversibly to Ammonia and Hydrogen Iodide

question 49

Multiple Choice

Ammonium iodide dissociates reversibly to ammonia and hydrogen iodide.
NH₄I(s)
NH₃(g) + HI(g)
At 400°C,K_p = 0.215.Calculate the partial pressure of ammonia at equilibrium when a sufficient quantity of ammonium iodide is heated to 400°C.

• A)0.103 atm
• B)0.215 atm
• C)0.232 atm
• D)0.464 atm
• E)2.00 atm

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