Answer :

Answer:

138.46KJ

Explanation:

In(k1/k2) = Ea/Rx (1/T1-1/T2)

T1= 195+273= 468k

T1= 195+ 273= 531k

K1= 4.5 X 10-5

K2=3.2x10-3

Rx= 8.3145

In(71.111)= Ea/8.3145(1/468- 1/531)

4.26409x 8.3145= Ea(0.000256)

Ea=138464.1

=138.46kJ

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