Home > Chemistry > Equilibrium Constants

What are the units for the equilibrium constant?

Answer 1

Equilibrium constant has no units

This is because it is a ratio of similar quantities.

For Example: the equilibrium constant with respect to concentration(#K_c#) is the ratio of the concentrations of products divided to the concentrations of the reactants

That is,

#"concentration"/"concentration" -= "no units"#

By signing up, you agree to our Terms of Service and Privacy Policy

Answer 2

Xavier Avery

The units for the equilibrium constant (K) depend on the reaction's stoichiometry and are determined by the concentrations of reactants and products. If the reaction is written in terms of concentrations (mol/L), the units for K are (mol/L)^(Δn), where Δn is the difference in the number of moles of gaseous products and reactants. If the reaction is written in terms of pressures (atm), the units for K are (atm)^(Δn).

By signing up, you agree to our Terms of Service and Privacy Policy

Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.