The reaction quotient (Q) is a dimensionless number that indicates the relative amounts of products and reactants present during a reaction at any given point, allowing comparison with the equilibrium constant (K) to predict the direction of the reaction. If Q < K, the reaction will proceed forward to form more products, whereas if Q > K, the reaction will shift in reverse to form more reactants.

Reaction Quotient (Q)

The reaction quotient, Q, is a measure that helps predict the direction in which a chemical reaction will proceed at a given moment. It compares the current concentrations or partial pressures of the reactants and products to the equilibrium constant, K, to determine if the system is at equilibrium or if it will shift to form more products or reactants.

Reaction Quotient

Dimensionless Number

Relative amounts of products and reactants

The equilibrium constant, denoted as K, is a numerical value that expresses the ratio of the concentrations of products to reactants at equilibrium for a reversible chemical reaction at a given temperature. It provides insight into the extent of the reaction and whether the equilibrium position favors the formation of products or reactants.

Concepts

Your Lessons