When do the macroscopic properties become constant in an equilibrium system?
when all reactions have stopped
when the reactants are completely used up
when forward and reverse reaction rates are equal
when maximum enthalpy has been reached

The reaction below shows a system in equilibrium. how would a decrease in temperature affect this reaction? a. the rate of formation of the gases would increase. b. the equilibrium of the reaction would shift to the left. c. the equilibrium would shift to cause the gases to sublime into solids. d. the chemicals on the left would quickly form the chemical on the right.