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Q. Activation energy of a reaction

J & K CETJ & K CET 2008Chemical Kinetics

Solution:

According to Arrhenius equation, the relationship between the activation energy and temperature is
$k=A e^{-E_{a} / R T}$
$\log k=\frac{-E_{a}}{2.303 R T}+\log A$
$\therefore $ Activation energy decreases with rise in temperature, thereby increasing the rate of the reaction.