15. Chemical Kinetics

Which of the following best describes the effect of activation energy on a chemical reaction?

Which of the following correctly labels the key features of an energy diagram for a two-step reaction?

Which point on an energy diagram for the reaction A → D represents the transition state?

Which of the following processes is represented by an energy diagram where the products have lower energy than the reactants?

Which of the following is a true statement about an energy diagram for an exothermic reaction?

In an energy-profile graph, the activated complex is represented at the:

An energy diagram for a chemical reaction shows seven distinct regions (bins) labeled as follows: (1) Reactants, (2) Activation energy, (3) Transition state, (4) Intermediate, (5) Second activation energy, (6) Second transition state, (7) Products. Which type of reaction does this energy diagram most likely represent?

In fluorescence, how do the energies of excitation and emission compare? Which is greater?

Which of the following best describes the qualitative energy diagram for the dissolution of LiI in water?

In an energy diagram for a chemical reaction, what does the 'energy hill' represent?

Which concept is commonly illustrated using energy diagrams to explain activation energy and how chemical reactions proceed?

Which statement best describes the transitions between the energy levels shown in the diagram for an electron in this atom or molecule?

Which of the following correctly labels the components of an energy diagram for a spontaneous reaction?

In a potential energy diagram for a chemical reaction, how is the enthalpy change (ΔH) of the reaction represented?

In an energy diagram for a chemical reaction, which part of the graph represents the activation energy?