Thermal physics- kinetic model of matter

03.25.2020
11:43:15
Hi students, good morning everyone
Let's we discuss some important concept in the kinetic model of matter
1.changes of state for example : solid to liquid is called as melting
Liquid to solid is called as freezing
This u can clearly understand in the physics course book pg no: 117 in the figure 9.2
2. The distinguish properties of the three states of matter. For example solid has fixed volume and shape but liquid has only fixed volume..
U can understand this clearly in pg.no : 117 figure 9.1.
3.Sometimes solids can goes directly to the vapour state and that is called as sublimation .
4. Sometimes we have spaces between sections.
The reason is to expand and contract easily with temperature changes.
5.The first thermometer invented by Galileo Galilei.