The reaction
C6H6(l) + Br2(l) → C6H5Br(l) + HBr(g)
the products have a lower energy than the reactants.
a. Predict the sign of the entropy change for this reaction. Explain.
b. Predict whether reactants or products would predominate in an equilibrium mixture. Why?
c. How can you account for the fact that a mixture of the reactants must be heated in the presence of a catalyst in order to produce products?