How would you determine the activation energy Ea experimentally from rate data at different temperatures?

• A. Plot ln k versus 1/T; the slope equals -Ea/R; from the slope, Ea is obtained.
• B. Plot k versus T; Ea is the slope.
• C. Plot log10 k versus T; the slope equals Ea.
• D. Use the Arrhenius plot of T versus ln k; the slope equals -Ea/R.

Answer: (A)