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Q.

A particular reaction rate increases by a factor of five when the temperature is increased from 5° C to 27° C. What is the activation energy of the reaction?

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a

50.7 kJ mol−1

b

6.10 kJ mol−1

c

18.9 kJ mol−1

d

157 kJ mol−1

answer is C.

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Detailed Solution

In (5)=Ea8.314J/ mol k 1278−1300

Ea=ln 5×8.314×300×27822

Ea=50.7kJ/ mol 

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A particular reaction rate increases by a factor of five when the temperature is increased from 5° C to 27° C. What is the activation energy of the reaction?