How do you know if a reaction has reached equilibrium?
Q can be used to determine which direction a reaction will shift to reach equilibrium.
If K > Q, a reaction will proceed forward, converting reactants into products.
If K < Q, the reaction will proceed in the reverse direction, converting products into reactants.
If Q = K then the system is already at equilibrium..
What does it mean for a reaction to be at equilibrium?
A reaction is at equilibrium when the amounts of reactants or products no longer change. Chemical equilibrium is a dynamic process, meaning the rate of formation of products by the forward reaction is equal to the rate at which the products re-form reactants by the reverse reaction.
How do you know if a reaction is reversible?
In a reversible reaction, both forward and reverse directions of the reaction generally occur at the same time. While reactants are reacting to produce products, products are reacting to produce reactants. Often, a point is reached at which forward and reverse directions of the reaction occur at the same rate.
What is the equilibrium constant for the reverse reaction?
The equilibrium expression written for a reaction written in the reverse direction is the reciprocal of the one for the forward reaction. K’ is the constant for the reverse reaction and K is that of the forward reaction….EquationEquilibrium Constant N2(g) + O2(g) NO2(g)Kc = 4.1 x 10-92 more rows
What is true of a reaction that has reached equilibrium?
In a chemical equilibrium, the forward and reverse reactions occur at equal rates, and the concentrations of products and reactants remain constant. A catalyst speeds up the rate of a chemical reaction, but has no effect upon the equilibrium position for that reaction.