Question

the graph shows the energy involved in two chemical reactions. which statement accurately describes the graph? a reaction a occurs faster than reaction b because reaction a requires more energy than reaction b. b product b contains more energy at the end of the reaction than reactant a has at the beginning of the reaction. c reactant a contains less energy at the beginning of the reaction than product b has at the end of the reaction. d the data plotted for reaction a and reaction b indicates that reaction b requires less activation energy.

Explanation:

Activation energy is the energy needed to start a reaction. In the graph, the peak of the curve represents the activation - energy barrier. Reaction B has a lower peak compared to Reaction A, meaning it requires less activation energy.

Answer:

D. The data plotted for Reaction A and Reaction B indicates that reaction B requires less activation energy.