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The molar entropies of HI(g), H(g) and I...

The molar entropies of HI(g), H(g) and I(g) at 298 K are 206.5, 114.6, and 180.7 J `mol^(-1)K^(-1)` respectively. Using the `DeltaG^(@)` given below, calculate the bond energy of HI.
`HI(g)rarrH(g)+I(g)," "DeltaG^(@)=271.8 kJ`

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