What is 1/K? [ENDORSED]

[Berivan Kamran 3E]

What does 1/K (equilibrium constant) mean?
What would a question ask when requiring us to give 1/K?

[Chem_Mod]

It is the inverse of K for that reaction.
Meaning if the forward reaction has an equilibrium constant equal to 10, then the reverse reaction has an equilibrium constant equal to 0.1.

[StephanieRusnak]

if the equilibrium constant for a reaction is K then the equilibrium constant for its reverse reaction is 1/K.

[Elika Asis 3C]

If a reaction is reversed, for example:
A + B ⇌ C is flipped to C ⇌ A + B, and you are given the K of the original reaction, and you are asked for the K value of the second reaction, you simple get the reciprocal of the original K value.
Hope this helps!

[Isabella Zizolfi 2F]

1/K is the reciprocal of K for that reaction
if you know the value of K of the forward reaction (for example 5) and the exercise asks you to find the K of the reverse reaction, you can find it by calculating the reciprocal of K of the forward reaction (in our example 1/5 which is 0.2)