From Arrhenius law, a plot of loge K versus 1/T gives a straight line with a slope of (-E/R). The unit of E/R is___________________?
Correct answer: B. °K
- A. k cal
- B. °K
- C. k cal/°K
- D. k cal. °K
Explanation
In the Arrhenius relation, the slope is −E/R. Since E has energy per mole and R has energy per mole-kelvin, their ratio has units of kelvin.
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