___ expand to fill up the space given to them at room temperature.
Solids
Gases
liquid
Ice
Gas particles are loosely packed and have very weak interaction between them. So it flows and expands easily at room temperature.
In Polar molecular solids Most of them are gases or liquids at room temperature and pressure. Then my qustion is why are we calling that a Solid , if it is seen in gas or liquid
Fill in the blanks :
(a) Boiling occurs at ___
(b) Evaporation takes place at ___
(c) The molecules of liquid ___ heat from surroundings in evaporation.
(d) Heat is ___ during boiling.
(e) Cooling is produced in ___
(f) A longer rod expands ___ than a shorter rod on being heated to the same temperature.
(g) Liquids expand ___ than the solids.
(h) Gases expand ___ than the liquids.
(i) Alcohol expands ___ than water.
(j) Iron expands ___ than copper.