# What is the activation energy for a reaction if its rate doubles when the temperature is raised from 20°C to 35°C ?(R = 8.314 Jmol-1K-1) Option 1) 15.1 kJ mol-1 Option 2) 342 kJ mol-1 Option 3) 269 kJ mol-1 Option 4) 34.7 kJ mol-1

As learnt in @9518

Since

K2  = 2K1 , T1 = 273 + 20 K = 293 K

T2 = 273 + 35 K = 308 K

R = 8.314 J mol-1 K-1

Option 1)

15.1 kJ mol-1

Option 2)

342 kJ mol-1

Option 3)

269 kJ mol-1

Option 4)

34.7 kJ mol-1

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