Hydrogen Iodide Can Theoretically Be Made by the Reaction of Hydrogen

question 7

Short Answer

Hydrogen iodide can theoretically be made by the reaction of hydrogen gas and iodine by the following reaction.
H₂(g) + I₂(s)  2HI(g)
What temperature conditions are required for the formation of HI to be favored at standard pressure?
S°(H₂, g) = 130.6 J/mol · K
S°(I₂, s) = 116.1 J/mol · K
S°(HI, g) = 206.6 J/mol · K
H (HI, g) = 26.5 kJ/mol · K

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