Kp and Kc

[Dang Lam]

What is the differences between Kp and Kc? Can someone help?

[Suchita 2I]

Kc and Kp are both equilibrium constants used for gas-phase mixtures. However while Kc uses molar concentration of the gases, Kp uses partial pressure of the gases involved.

[Girija_3E]

While this is not a difference, also keep in mind that you calculate both of them the same way, with the products on the top and the reactants on the bottom!

[AtreyiMitra2L]

The former is referring to the partial pressures and the latter is referring to molarity. You use the former with gases and the latter with gases and aqueous solutions.

[Katherine Jordak 1H]

Is it possible to use Kc when only gases are involved in the reaction? If so, how do you know when to use Kp and when to use Kc?

[Katherine Jordak 1H]

Is it possible to use Kc when only gases are involved in the reaction? If so, how do you know when to use Kp and when to use Kc?

[Ashley Fallon 3C]

Kc uses molar concentrations while Kp uses the partial pressures of gasses inside the closed system

[Yuting Zhu 3D]

I think it just depends on the facts you are given in the problem. When you are given concentrations of gases, you are using Kc, while if you are given the partial pressures, then you should use Kp.