Jee Main
Chemical Kinetics And Nuclear Chemistry
JEE Main 2024 (Online) 4th April Morning Shift
Consider the following transformation involving first order elementary reaction in each step at constant temperature as shown below.
Some details of the above reactions are listed below.
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| Step | Rate constant (sec\(^{-1}\)) | Activation energy (kJ mol\(^{-1}\)) |
|---|---|---|
| 1 | \(\mathrm{k_1}\) | 300 |
| 2 | \(\mathrm{k_2}\) | 200 |
| 3 | \(\mathrm{k_3}\) | \(\mathrm{Ea_3}\) |
If the overall rate constant of the above transformation (k) is given as \(\mathrm{k=\frac{k_1 k_2}{k_3}}\) and the overall activation energy \((\mathrm{E}_{\mathrm{a}})\) is \(400 \mathrm{~kJ} \mathrm{~mol} \mathrm{~m}^{-1}\), then the value of \(\mathrm{Ea}_3\) is ________ integer)