Question

What are surfaces in physical chemistry? Describe the concept of surfaces.

Answer 1

the interaction of solid or liquid matter with its environment which may be either in the gaseous , liquid or solid state can only come about via the surface of the respective condensed phase.

the term surface is mostly used in the context of gas-liquid or gas-solid phase boundaries .otherwise the term interface is used

example : gas molecules accumulation on the surface of the solids and liquids

                liquid molecules accumulation on the surface of the solids and liquids

there is no surface is possible for gaseous state .