1.

Which compound will absorb the maximum amount of heat when dissolved in the same amount of water ? (Integral heats of solution at 25^(@)C in kcal/mol of each solute are given in brackets)

Answer»

`HNO_(3)(DeltaH=-33)`
`KCL(DeltaH=+17.64)`
`NH_(4)NO_(3)(DeltaH=+25.5)`
`HCl(DeltaH=-74.1)`

Solution :More +ve is `DeltaH_(s)` more is HEAT of solution


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