Question

question 5 (1 point)
potential energy diagram
use the potential energy diagram. what is shown by the letter b?
the activation energy of the forward reaction
the activation energy of the reverse reaction
the transition state
the heat of reaction
the entropy of the reaction
question 6 (1 point)
which step of a reaction is the rate - determining step?

Explanation:

In a potential energy diagram, the activation energy of the forward reaction is the energy difference between the reactants and the transition - state (the peak of the energy curve). The letter B represents the energy required to reach the transition state from the reactants for the forward reaction. The transition state is the peak itself, not the energy difference (so it's not the transition state). The heat of reaction is related to the energy difference between reactants and products (A + B - C in some sense, but not just B). Entropy is not directly represented as an energy difference in this simple potential - energy - vs - reaction - progress diagram. For the reverse reaction, the activation energy would be related to the energy difference between products and the transition state.

Answer:

the activation energy of the forward reaction