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Question: Find out % of reactant molecules crossing over the energy barrier of 325 K given that DH<sub>325</su...

Find out % of reactant molecules crossing over the energy barrier of 325 K given that DH325 = 0.12 KCal& (Ea)b/w = 0.02 Kcal

A

19.38 %

B

80.62 %

C

100 %

D

88 %

Answer

80.62 %

Explanation

Solution

Fraction of reactant molecules capable of crossing energy barrier is given by e-Ea/RT

Now (Ea)f = DH + (Ea)b/w