[CKabes]

When do you use a 1 in the numerator when finding K_c instead of the products?

[Borek]

Please elaborate - give examples of what you mean.

I think I may know what you are aiming at, but its just a wild guess at the moment.

[kishoreddi]

i think you meant to ask what if Kc=1.

if Kc=1 means the reaction is at equilibrium,
if Kc is less than one then reaction should proceed to right to make more product to reach equilibrium
if kc>1, then the reaction should shift to left to reach equilibrium.

[curiouscat]

i think you meant to ask what if Kc=1.

I don't think that's what he meant.

I think I may know what you are aiming at, but its just a wild guess at the moment.

@Borek: Can I guess that your guess is Solid Product. Just wondering.

[Borek]

@Borek: Can I guess that your guess is Solid Product. Just wondering.

I guess your guess about my guess is correct.

[curiouscat]

if Kc=1 means the reaction is at equilibrium,

In any case, I think what you wrote is absolutely not true.