The true physical state of matter dictates the rigorous mathematical boundaries between homogenous T — Surface Chemistry Chemistry Question

💡 Solution & Explanation

Thomas Graham's original dialysis classification evolved into a strict mathematical particle-size boundary. True solutions feature solute particles strictly below $1\text{ nm}$ (invisible and pass through membranes). Suspensions feature massive chunks strictly above $1000\text{ nm}$ (settle under gravity). The precise intermediate boundary of $1\text{ nm}$ to $1000\text{ nm}$ definitively characterizes the entire Colloidal State.