1. Tardigrade
  2. Question
  3. Chemistry
  4. The rate constant ( k ) of a reaction is measured at different temperatures (T), and the data are plotted in the given figure. The activation energy of the reaction in kJ mol -1 is: (R is gas constant)

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Q. The rate constant $( k )$ of a reaction is measured at different temperatures (T), and the data are plotted in the given figure. The activation energy of the reaction in $kJ mol ^{-1}$ is : (R is gas constant)Chemistry Question Image

JEE MainJEE Main 2020Chemical Kinetics

Solution:

Slope $=-\frac{E_{a}}{R}$

$-\frac{10}{5}=-\frac{E_{a}}{R}$

$E_{a}=2 R$