The reaction below shows how the potential energy changes during a
chemical reaction. How is the change in enthalpy shown on the graph?
on hig
A. The red arrow shows that enthalpy is positive, indicating an
endothermic reaction.
B. The red arrow shows that enthalpy is negative, indicating an
exothermic reaction.
C. The tallest point on the graph shows that enthalpy is small,
indicating an exothermic reaction.
D. The tallest point on the graph shows that enthalpy is large,
indicating an endothermic reaction