1.

For an endothermic reaction, where DeltaH represents the enthalpy of the reaction in kJ/mol, the minimum value for energy of activation will be

Answer»

less than `DeltaH`
ZERO
more than `DeltaH`
equal to `DeltaH`

Solution : For a reaction `DeltaH=(E_a)_f-(E_a)_b`
or`(E_a)_f=DeltaH+(E_a)_b`
For endothermic reaction `DELTAHGT0`
`therefore(E_a)_fgtDeltaH`


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