The enthalpies of HCl, NaOH ,NaCl and H(...

The enthalpies of HCl, NaOH ,NaCl and `H_(2)O` are `-120, -82, -148 and -68` kCals. Respectively. `Delta H` of the following reaction is `HCl + NaOH rarr NaCl + H_(2)O`

`-28.7` kCals

`-18` kCals

`-57.3` kCals

`-14` kCals

Text Solution

Verified by Experts

The correct Answer is:

`Delta H = Delta H_(f_(("product"))) - Delta H_(f_(("reactants")))`
`= (-148) + (-68) - [(-120) + (-82)]`
`= -14` kcal

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