Question

The rate of reactions exhibiting negative activation energy

• A. decreases with increasing temperature
• B. increases with increasing temperature
• C. does not depend on temperature
• D. depends on the height of the potential barrier

Answer 1

Answer: (A)

decreases with increasing temperature

Answer 2

The rate of reactions exhibiting negative activation energy decreases with increasing temperature because the reaction with the greater activation energy will be faster at the higher temperature and $k=A e^{-E_{a} / R T}$ when $E_{a}=-v e$