What are equilibrium constants?

Some chemical effects progress irreversibly in one direction. One examples are hydrogen gas burning (H) in oxygen (O) to form water, as shown in the formula of 2 h _{2 + O 2}

Such equilibrium constants were derived from mathematical relationships revealed over time through the efforts of many scientists. These relationships use the ratios of dissolved species in the reaction system. One simple example is ionization of acetic acid. Another is a reversible breakdown of gas dinitruogen tetroxide. In them, as in all examples, are rOvníční constants depending on system conditions such as temperature.

acetic acid disoclitates into a positive hydrogen ion plus a negative acetate ion. What makes reaction reversible is that these ions can and will recorify on acid molecules. Other acetic acid molecules are then dissolved to replace those that have been recombricient. The result is a balance, leading to a mathematical expression. The concentrations of ion and acid relate to the equilibrium constant expression k = [H+] [ac-]/[HAC]. Logically, the equilibrium constant for the reverse reaction of this K inversions is because the concentration of acid becomes the concentration of the numerator and the ions becomes a denominator.

For dinitrogenic tetroxide containing nitrogen (N) and oxygen, the chemical reaction is written n _{2 o 4 2 ] As regards acetic acid, equilibrium constant for back reaction, as well as all equilibrium constants for all reverse reactions, is inverse k.}

irreversible reactions adhere to the same mathematical relationships in response that are reversible. In such cases, however, the denominator becomes either 0 or infinity if one examines the reaction in advance or a reverse response. This suggests that the equilibrium constant has the opposite value, infinity or from the year. Such information is unnecessary. Interesting is also the possibility of controlling the reaction to complete, so it is irreversible by removing one of the system from the system, such as a semipermeable membrane that retains reactants.