Question

in this reaction _. ab + cd → ac + bd potential energy of molecules reactants products the chemical energy of the products is greater than that of the reactants disorder has decreased the kinetic energy of the reactants is less than that of the products heat has been released to the environment entropy has decreased

Explanation:

The potential - energy graph shows that the potential energy of reactants is higher than that of products. In an exothermic reaction, heat is released to the environment when the potential energy of products is lower than that of reactants. Entropy and disorder are not directly indicated by this potential - energy graph. Kinetic energy is not compared in this graph either.

Answer:

heat has been released to the environment