What is an equilibrium constant?

Q: What is an equilibrium constant?


A: An equilibrium constant is a mathematical quantity that expresses the relationship between products and reactants of a reaction at chemical equilibrium with respect to a specific unit.

Q: How can we use an equilibrium constant?


A: We can use an equilibrium constant to understand whether the reaction tends to have a higher concentration of products or reactants at equilibrium, as well as determine if the reaction is already at equilibrium.

Q: What are some examples of different types of equilibrium constants?


A: Dissociation constants are one example of different types of equilibrium constants that provide relationships between the products and the reactants of a chemical reaction at chemical equilibrium in terms of different units.

Q: What does an Equilibrium Constant measure?


A: An Equilibrium Constant measures the relationship between products and reactants in a chemical reaction at chemical equilibrium with respect to a specific unit.

Q: How do we know when a reaction is already at Equilibrium?


A: We can use an Equilibrium Constant to determine if the reaction is already at Equilibrium.

Q: What does it mean for something to be “at equilibrium”?


A: At equilibrium means that there is no net change in concentrations over time - all components remain in balance, so reactions occur but they are balanced by reverse reactions occurring simultaneously.

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