What Is Meant By Pure Substances

Explanation

A pure srbstance is one which is made up of only one kind of particles. These particles may be atoms or molecules. For example, suphur is made up of only one kind of particles (called sulphur atoms), therefore, sulphur is a pure substance. Similarly, water is made up of only one kind iof particles (called water molecules), therefore, water is also a pure substance. If fact, all the elements and compounds are pure substances because they contain only one kine of particles. A pure substance is homogeneous throughout its mass. A pure substance cannot be separted into other kinds of matter by any physical process. A pure substance has a fixed composition as well as a fixed melting point and boiling point.