HI(g)has a ΔG_f° That Is Small and Positive,so HI Should

question 44

Multiple Choice

HI(g) has a ΔG_f° that is small and positive,so HI should dissociate to some extent but its activation energy is high.HI(g) is stable at room temperature.Chemists would describe the reason for the very slow dissociation reaction as:

• A)thermodynamically controlled
• B)the ΔG_f° is wrong
• C)the reaction is not slow
• D)the reaction is kinetically controlled
• E)the molecules can collide with each other

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