1. Tardigrade
  2. Question
  3. Chemistry
  4. If a reaction A + B arrow C, is exothermic to the extent of 30 KJ mol -1 and the forward reaction has an activation energy, 70 KJ mol -1 the activation energy for the reverse reaction is :-

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Q. If a reaction $A + B \rightarrow C$, is exothermic to the extent of $30\, KJ\, mol ^{-1}$ and the forward reaction has an activation energy, $70\, KJ\, mol ^{-1}$ the activation energy for the reverse reaction is :-

Solution:

$\Delta H = E _{ a _{ f }}- E _{ a _{ b }}$
$-30=70- x$
$x =100\, kJ\, mol ^{-1}$