Hydrogen iodide, HI decomposes in the gas phase to produce Hydrogen, H2, and iodine, I2. Measuring the value of the rate constant, k, for the reaction at several different temperatures yielded the following:
Temp,K k,1/M s
555 6.23*10^-7
575 2.42*10^-6
645 1.44*10^-4
700 2.01*10^-3
What is the value of the activation energy, in kilojoules per mol, for this reaction?