Just input all of the data you have, and the results will be computed for you in an instance. But what if you knew the equilibrium constant and the unknown was the initial concentration or coefficient of a component? Well, don't worry! Our calculator works in reverse – so it solves both kinds of problems. We then used this information to calculate the equilibrium constant. In our example, the concentrations of reactants and products at equilibrium were provided. Equilibrium Constant Calculator is a free online tool that displays the equilibrium constant for the given chemical reaction. When you put these numbers into the equation, K is found to be:Īs K > 1, the equilibrium favors the products. The reactants and products have the following concentrations: The reaction mixture is left for a while until an equilibrium is established. Therefore the equilibrium constant equation for this reaction is: This is one of the steps in synthesizing sulphuric acid: You have a mixture of gaseous sulfur dioxide and oxygen, from which you can react to form sulfur trioxide. To give you more insight into how this equation works in practice, we created this example. However, even if it applies in a different context, it is defined in the same way as the equilibrium constant! If the reaction is still underway, with oscillations between reagents and products, you have to use the reaction quotient calculator instead. However, the constant may be influenced by: The constant doesn't depend on the initial concentrations of the reactants and products, as the same ratio will always be reached after a certain period of time. To understand those concepts better, take a look at the molarity calculatorĬalculating the value of the equilibrium constant for a reaction is helpful when determining the amount of each substance formed at equilibrium as a ratio of each other. Where and are the molar concentrations of the reactants, and and are the molar concentrations of the products. With this tool, you can calculate the value of an equilibrium constant for a reaction while learning how to calculate the equilibrium constant with ease!īelow you can find the reversible reaction and equilibrium constant equations: To determine the state of this equilibrium, the reaction quotient should remain constant. ![]() At this point, the reaction is considered stable. ![]() ![]() This equilibrium constant calculator will help you understand reversible chemical reactions, which are reactions in which both the forward and backward reactions occur simultaneously.Īfter a certain amount of time, an equilibrium is formed, meaning that the rate of reactants being turned into products is the same as the rate of products being turned back into reactants.
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