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The activation energy for the reaction 2HI(g) → H2(g) + I2(g) is 209.5

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The activation energy for the reaction 2HI(g) → H2(g) + I2(g) is 209.5 kJ mol-1 at 581 K. Calculate the fraction of molecules of reactants having energy equal to or greater than activation energy.

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Fraction of molecules having energy equal to or greater than activation energy

x = Antilog (- 18.8323)
= Antilog 19.1677
x = 1.471 x 10-19

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