Which one of the following given graphs represents the variation of rate constant (k) with temperature (T) for an endothermic reaction?

Question

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For any reaction (endothermic or exothermic), the rate constant  increases with temperature according to the Arrhenius equation:

As  increases,  increases exponentially. The graph of  vs  is an exponential curve that starts near zero at low temperatures and rises steeply.

For an endothermic reaction, , but the shape of  vs  is still an exponential increase.

Answer: Option (1) — exponential increase of k with T

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