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Characteristics of Equilibrium Constant

For a reactio...

Question

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

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Solution

As we know,
$k = A e^{- E a / R T}$

So by comparison,
$- \frac{E a}{R} = - 40000$

$E a = 40000 \times 2 = 8 \times 10^{4} c a l$

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