Request a call back

Join NOW to get access to exclusive study material for best results

ICSE Class 8 Answered

Explain freezing on the basis of kinetic theory   
Asked by Nchopra1919 | 01 Apr, 2019, 04:51: PM
answered-by-expert Expert Answer
Kinetic theory of matter expains how molecules/atoms are arranged in different forms of matter i.e., solid, liquid and gas. Also, it explains how the transitions of state like melting, freezing, boiling and condensation takes place.

If energy is supplied by heating a solid, the heat energy causes stronger vibrations until the particles eventually have enough energy to break away from the solid arrangement to form a liquid. This is melting of solid. The heat energy required to convert one mole of solid into a liquid at its melting point is called enthalpy of fusion(latent heat). When a liquid freezes, the reverse happens. At some temperature, the motion of the particles is slow enough for the forces of attraction to be able to hold the particles as a solid.
Answered by Sivanand Patnaik | 01 Apr, 2019, 10:21: PM
ICSE 8 - Chemistry
Asked by Nchopra1919 | 01 Apr, 2019, 04:51: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
Get Latest Study Material for Academic year 24-25 Click here
×