1.

An exothermic reaction A to B has an activation energy of X kJ mol^(-1) of A. If the energy change in the reaction is Y kJ, then the activation energy of the backward reaction will be

Answer»

`-X`
Y-Y
Y-X
X + Y

SOLUTION :For an exothermic reaction heat of reaction, `DeltaH=E_(a(F))-E_(a(b))` ACTIVATION energy `(E_a)` fo backward reaction `E_a` of forward reaction + heat of reaction.
`= X + Y`.


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