A reaction reaches equilibrium at 100.°C. The equation and graph representing this reaction are shown below. If, after 60. seconds has passed, the pressure on the system was increased, then the equilibrium reaction will shift to the
N. O.(g) = 2NO(g)

Which best describes the activation energy of a chemical reaction? a. the combined energy of all the reactants b. the amount of energy required for a reaction to occur c. the difference in energy between products and reactants d. the potential energy stored in the bonds of reactants and products