Physical Property is a characteristic of the substances that is observed or measured without changing the composition of the substance. The measurement of the Physical Property may change the arrangement of the substance, but not the structure of its molecules. Some Physical Properties are specific for a given substance and can be used to help identify them that includes the colour, smell, boiling point, melting point, infra-red spectrum, viscosity and density, etc. (Refer to the Chemical Property)
Related Definitions in the Project: The Engineering; Property and Unit
