If a reaction follows the Arrhenius equation, the plot vs gives straight line with a gradient unit. The energy required to activate the reactant is:

Question

If a reaction follows the Arrhenius equation, the plot  vs  gives straight line with a gradient  unit. The energy required to activate the reactant is:

Canvas Classes · Accepted Answer

🧠 Linear Plot of  vs  — Slope Is Exactly

The Arrhenius equation in log form:

If you plot  versus  (as the question requests), the slope is . The y-intercept is .

The question says the slope is . By identification: , so .

First move: identify the slope as  by reading off the Arrhenius equation in the form requested.

🗺️ Working It Out

Compare to -axis -axis, where :

- intercept: 
- slope:

Given slope , equate: , so .

⚡ The Smart Move

Two related plots come up in JEE problems:

-

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