List of top Chemistry Questions on Chemical Kinetics asked in Punjab PMET

$N _{2}(g)+3 H _{2}(g) \rightleftharpoons 2 NH _{3}(g)+22\, kcal$. The activation energy for the forward reaction is $50\, kcal$. What is the activation energy for the backward reaction?

For the reaction A$\to$ B, the rate law expression is rate = k [A], Which of the following statements is incorrect ?