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Q.

A first order reaction is 50% completed in 20 minutes at 270C and in 5 minutes at 470C . The total energy of activation of the reaction is :

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a

43.85 kJ/mol

b

55.070 kJ/mol

c

11.97 kJ/mol

d

6.65 kJ/mol

answer is B.

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Detailed Solution

k1(300)=0.69320;  k2(320)=0.6935 lnk2(320)k1(300)=EaR[1T1−1T2]
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