Question

Thermodynamic parameters for :
`HX + H_2O to H_3O^+ + X^-` are given for `HF, HCL, HBr` and `HI`, which acid `(s)` will show the forward reaction?
`{:(,HF,HCl,HBr,HI),(DeltaG^(@),+16,-46,-59,-61),(DeltaH^(@),-13,-59,-63,-57),(TDeltaS^(@),-29,-13,-4,+4):}`
A. `HF`
B. `HCl`
C. `HBr`
D. `HI`

Answer 1

Correct Answer - A::B::C::D
All are acid, thus reaction will go in forward direction. However maximum for `HI` as their `K_(a)` values are `10^(-3),10^(8),10^(10)` and `10^(17)` for `HF,HCl,HBr` and `HI` respectively.