Question

What does a reaction energy diagram represent ?

A. The changes in concentrations with time
B. The changes in energy during reaction reaction
C. The changes in phases with temperature
D.The changes in the reaction rate with time

Answer 1

b. changes in energy during reaction

Step-by-step explanation:

graph

Answer 2

B. changes in energy during the reaction

Step-by-step explanation:

y-axis measures "energy" and x-axis measures "reaction progress". Those units fit well with (B) and not so well with concentration and time (A), phases and temperature (C), or reaction rate and time (D).