D STATE - 1) Definite shape and volume                          2) Incompressible                          3) There is little space between the particles of a solid                          4) These particles attract each other very strongly .                         5) Particles of solid cannot move freely LIQUID STATE -1) No definite shape liquid contain the shape of the vessel                                       in which it is kept .                         2) compressible to small extent .                         3) These particles have greater space between them .                         4) The force of ATTRACTION between liquid particles is less than .                               solid particles .                        5) these particles move freely GAS  STATE  - 1) Gas have neither a definite shape nor definite volume .                         2) highly compressible                         3) the space between gas particles is the GREATEST .                        4) the force of attraction is least between gaseous particles                         5) gaseous particles are in a continuous randam motion.b) rigidity can be expressed as the tendency of MATTER to RESIST a change in shape . compressibility  is the ablity to be reduced to a lower volume when force is applied . fluidity is the ablity to flow.by filling a gas container we mean the attainment of shape of the container by gas.                                               shape defines a definite boundary.                                                                   kinetic ENERGY is the energy possessed by a particle due to its motion.              density is mass per unit volume.