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Arrhenius Equation

For a reactio...

Question

For a reaction, the rate constant is expressed as $k = A e^{- 40000 / T}$ . The energy of the activation is:

40000 cal

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88000 cal

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80000 cal

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8000 cal

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Solution

The correct option is C 80000 cal
$k = A e^{- E_{a} / R T}$
$∴ \frac{- E_{a}}{R} = - 40000$
$∴ E_{a} = 40000 \times 2 = 80000 c a l$

Suggest Corrections

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