1.

Consider an endothermic reaction X to Y with the activation energies E_(b) and E_(i), for the backward and forward reactions, respectively. In general

Answer»

there is no definite relation between `E_(B) and E_(F)`
`E_(b)=E_(f)`
`E_(b)gtE_(f)`
`E_(b)ltE_(f)`

Solution :Enthalpy of REACTION`(DeltaH)=E_(a_(t))-E_(a_(b))`
For an endothermic reaction `DeltaH=+ve` HENCE for `DeltaH` to be POSITIVE
`E_(a_(t))ltE_(a_(b))`


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