For the reversible reaction A$\rightleftharpoons$B; ΔH = −2 kcal, the pre-exponential factors are sa

Question

For the reversible reaction A$\rightleftharpoons$B; ΔH = −2 kcal, the pre-exponential factors are same for the forward and backward reactions. If the activation energy of backward reaction is 8 kcal/mol, then which of the following statements is/are correct about the reaction?

Accepted Answer

$\Delta H = E_{af} - E_{a_{b}}$$\Rightarrow - 2 = E_{a_{f}} - 8 $$$\Rightarrow E_{a_{f}} = 6	ext{ kcal/mol}$$Now, the fraction of molecules crossing energy barrier $= e^{- E_{a}/RT}$and $K_{eq} = e^{- \Delta H/RT}$.

Question

Options

Solution

More Chemical Kinetics and Nuclear Chemistry Questions