From the following information
`{:(A^(-)(g)rarrA^(+2)(g)+3e^(-),DeltaH_(1) = 1400 kJ//"mole"),(A(g)rarrA^(+2)(aq)+2e^(-),DeltaH_(2) = 700 kJ//"mole"),(DeltaH_(EG)[A^(+)(g)] =- 350 kJ//mol,),((IE_(1)+IE_(2))for A(g) = 950kJ//mol,):}` Find
(a) `IE_(1)` of A (b) `IE_(2)` of A (c) `DeltaH_(EG)` of A (d) `DeltaH_(HE)` of A^(2+)(g)`

Answer

(a) `IE_(1)` of `A = 350 kJ//mol`, (b) `IE_(2) = 600 kJ//mol`, (c) `DeltaH_(EG)H` of `A =- 450 kJ//mol`, (d) `Delta_(HE)H` of `(A^(2+)) =- 250 kJ//mol`

Explanation

`{:(A^(-)rarrA_((g))+e^(-),),(A rarr A_((g))^(+)+e^(-),),(A^(+)rarrA_((g))^(+2)+1e^(-),):}}DeltaH_(1) = 1400 KJ//mol`
`{:(A_((g))rarrA_((g))^(+),),(A^(+)rarrA_((g))^(+2),),(A_((g))^(+2)rarrA_((aq))^(+2),):}}DeltaH_(2) = 700 KJ`
`A +1e^(-) rarr A (DeltaH)_(EG) [A^(+)(g)] =- 350 KJ//mol`
`(I.E_(1)+I.E_(2) = 950 KJ//mol)`