1.

Formation of a solution from two components can be considered as (1). pure solventtoseparated solvennt molecules, DeltaH_(1) (2). Pure solute toseparated solute molecules, DeltaH_(2) (3). Separated solvent and solute moleculestosolution, DeltaH_(3) Solution so formed will be ideal if

Answer»

`DeltaH_("SOLN")=DeltaH_(1)-DeltaH_(2)-DeltaH_(3)`
`DeltaH_("soln")=DeltaH_(3)-DeltaH_(1)-DeltaH_(2)`
`DeltaH_("soln")=DeltaH_(1)+DeltaH_(2)+DeltaH_(3)`
`DeltaH_("soln")=DeltaH_(1)+DeltaH_(2)+DeltaH-DeltaH_(3)`

SOLUTION :For IDEAL solution,
`DeltaH_("solution")=DeltaH_(1)+DeltaH_(2)+DeltaH_(3)`


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