Solids/Liquids

[Wilson 2E]

For the rate of the reaction, k[a][b], what happens if either a or b is a solid or liquid. Is it like the equilibrium constant where a product/reactant in a solid or gas phase is negligible?

[Kate Osborne 1H]

because rate is measured in change in concentration versus time only things that have concentrations can change it, so only gases and aqueous substances are included i believe.

[Shivam Rana 1D]

I think the "concentration" of solids and liquids is not included in the rate law.

[Charysa Santos 4G]

Because solids and liquids do not have a concentration, they are not included in the rate law.