1.

DeltaH_(f)^(@) of water is -285.5 KJ mol^(-1). If enthalpy of neutraliztion of monoacidic strong base is -57.3KJ mol^(-1) then DeltaH_(f)^(@) of OH^(-) ion will be :

Answer»

`-285.5KJmol^(-1)`
`285.5KJmol^(-1)`
`114.5KJmol^(-1)`
`-114.5KJmol^(-1)`

ANSWER :a


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