Kp

[BrianaBarr2A]

Do we include solids and liquids in Kp? I know we don't in Kc and am confused about Kp so would just like to clarify.

[Christian Hardoy 3F]

Solids and liquids are not included in Kp or Kc, as they do not affect K at equilibrium.

[Sedra_Tibi_1L]

We don't include solids and liquids in both Kc and Kp. We don't include them in any equilibrium constants because solids and liquids don't affect the reaction reaching equilibrium. Equilibrium constants only depend on the gases and aqueous solutions included in the reaction.

[Ann Zhang_1M]

Kp actually means K, which can be regarded equivalently to Kc.
Pure substances like solids and liquid are not included in the calculation of equilibrium constant, no matter if it's Kp or Kc.

[Kaitlin_Ryan_ 3K]

When calculating Kp, only gases are used.

Solids and liquids are excluded from this calculation.

[Catherine_Zhang_1H]

Do we have to know how to convert between Kp and Kc?

[Yeadam Seo 1E]

We only include gas in Kp, not liquids and solids, because we are using partial pressures to calculate Kp.