Question

Identify 12 substances around you as solids, liquids and gases. Justify your answer with reason.

Thanks in Advance

Answer 1

1=phone is solid because it is hard and the molecules are tightly packed
2=wooden box is solid because the molecules are closely packed and are hard in nature
3=pen is solid becuse the intermolecular forces are strong and there is no gap between them
4=all the containers that gives shapes and size to liquid and gas are solid becuse they have a definite size and have high intermolecular force
5=water is liquid because its molecules are loosely packed which make water to flow
6=drinks are liquid becuse their molecules are are slighty loose
7=chemicals(liquids) are liquid because becuse they have gaps between their molecules and hence they can can be mixed with others
8=steam is gas because the molecule are freely packed and have less molecular force
9=air is gaseous in form becuse of its loosely packed molecules
10=smoke is gas because it is also loosely packed and it have full freely molecules which can move randomly in any direction
11=stone is hard and are very tightly packed, it have high molecular forces between them and hence these are solid in nature
12= gases like nitrogen, oxygen, carbondioxide etc are gaseous in state due to their loosely packed molecules and these have much gaps between their molecules and they very low molecular forces