Chemistry

Problem

Three different single-step reactions occur at the same temperature with the following activation energies: • Reaction A:

E_a = 50\,\text{kJ}

• Reaction B:

E_a = 80\,\text{kJ}

• Reaction C:

E_a = 30\,\text{kJ}

Assuming identical pre-exponential factors, which ranking lists the reactions in order of increasing rate constant

k

? a)

C < B < A

B < A < C

C < A < B

A < B < C