The air bags that provide protection in automobiles in the event of an accident expand because of a rapid chemical reaction. From the viewpoint of the chemical reactants as the system, what do you expect for the signs of q and w in this process?
Chapter 15: Chemical Equilibrium Thursday, February 2, 2017 3:27 PM The Concept of Equilibrium Equilibrium: a state in which there are no observablechanges as time goes by Chemical equilibrium is achieved when: 1. The rates of forward and reverse reactions are equal and 2. The concentrationsof the reactants and the products remain constant When a reaction has reached equilibrium it does not mean there are equal concentrations of reactants and products. Kfwill be larger than K r Forward reaction:rate = k [A]f Reverse reaction:rate = k [B]r The only way k [Af=k [Br at equilibrium is if the concentrationof B is higher than A. After equilibrium is established for a chemical reaction, the forward reaction rate is equal to the reverse reaction rate. Equilibriumw