Characteristics of Gases 1) Gases have neither definite shape nor definite volume. They take up the shape and volume of the container. 2) They have lower density than liquids and solids. 3) They are highly compressible 4) Gases intermix completely in all proportion without any mechanical aid. 5) They exert pressure equally in all direction. Measurement of … [Read more...] about Characteristics of Gases
measurement of temperature
Physical Quantities
Physical Properties Physical Properties are those which can be measured or observed without changing the identity or composition of the substance. For example : Mass, volume, melting point, boiling point. Chemical properties Chemical properties are those in which a chemical change in the substance occurs. The measurement of any physical quantity consists of two … [Read more...] about Physical Quantities