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Consider the Arrhenius equation given below and mark the correct option, $k = A e^{- E_{a} / R T}$ .

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Rate constant increases exponentially with increasing activation energy and decreasing temperature.

Rate constant remains constant with increasing activation energy and decreasing temperature.

Rate constant increases exponentially with decreasing activation energy and decreasing temperature.

Rate constant increases exponentially with decreasing activation energy and increasing temperature.

answer is C.

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Detailed Solution

The given Arrhenius equation,

$k = A e^{- E_{a} / R T}$

In this case rate constant increases exponentially with decreasing activation energy and decreasing temperature. When the activation energy is decreases, the more reactants will cross the barrier easily.

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