kinetic particle theory

solid - forces

very strong attractive forces

solid - arrangement

very close packed in an orderly manner

solid - movement

vibrate and rotate in fixed positions

liquid - forces

strong attractive forces

liquid - arrangement

close packed in a disorderly manner

liquid - movement

slide past one another, move randomly

gas - forces

weak attractice forces/negligible

gas - arrangement

far apart in a random manner

gas - movement

move randomly at high speeds

why does the temperature remain constant - heating curves

energy is taken in during the breaking of bonds. the temperature remains constant as the energy absorbed during the breaking of bonds equal to the heat energy absorbed from the surroundings during heating and hence, the particles do not gain in kinetic energy so it remains constant.

why does the temperature remain constant - cooling curves

energy is released during the formation of bonds. the temperature remains constant as energy produced during the formation of bonds is equal to the heat energy released to the surroundings during cooling and hence, the particles do not gain in kinetic energy so the temperature remains constant.