7 posts • Page 1 of 1
Because changes to their concentration are inconsequential for the rate of reaction. Solids just sit there, they don't really have a concentration because they don't mix with the solvent. Liquids are the solvent, so you assume that there will always be enough of it that any decrease will be insignificant for the rate of reaction.
Who is online
Users browsing this forum: No registered users and 2 guests