1.

Considerthe following ionisationsteps : M ( g) toM^(+) (g) + e^(-), Delta H= 100 eV M ( g) toM^(2+)(g) + 2e^(-), Delta H= 250 eV Selectthe correctstatement:

Answer»

`Delta_(i)H_(1)` of Mg (g ) is100 EV
`Delta_(i)H_(1) ` of `Mg^(+)( g) ` is 150 eV
`Delta_(i)H_(2) ` of `M (g)` is 250 eV
`Delta_(i)H_(2)` of M (g ) is150 eV

Solution :`Delta_(i) H_(2) ` of M (g)= `Delta_(i)H M^(+) ( g) = 250-100 = 150 eV`


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