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Given the following information A^(-)(...

Given the following information
`A^(-)(g) to A^(2+)(g) + 3e^(-) "    " DeltaH_1 = 1400 kJ mol^(-1)`
`A(g) to A^(2+)(aq) + 2e^(-) "    " DeltaH_2 = 700 kJ mol^(-1)`
`DeltaH_(eg)[A^(+)(g)] = -350kJ mol^(-1)`
where `DeltaH_(eg)` is electron gain enthalpy.
`(IE_1 + IE_2)` for `A (g)=950 kJ mol^(-1)`
The value of `DeltaH_(eg)` of `A^(2+) (g) `in `kJ mol^(-1)`is

A

`+600`

B

`-600`

C

`-500`

D

`+500`

Text Solution

Verified by Experts

The correct Answer is:
B
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