1.

Why are NI (II)compoundsthermodynamicallymore statethan Pt (II)compounds ?

Answer»

Solution :(i) The ionisationenthalpyvaluescan beusedto predictthe thermodynamicstabilityoftheircompounds.
(II)LET uscomparethe ionisationenergyrequiredfo form `NI^(2+)` and `Pt^(2+)` ions .
(iii) For Nickel `IE_(2), + IE_(2) =(737 + 1753)`
(iv)forplatinum`IE_(1)+ IE_(2)= (864+ 1794) `
(v ) Sincethe energyrequiredto form `Ni^(2+) ` isless than that of `Pt^(2+)` , Ni(II)compoundsare thermodynamicallymorestablethanPt (ii)compounds


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