Question

Using what you know about the compressibility of different states of matter explain why

a) air is used to inflate tyres
b) steel is used to make railway lines

Answer 1

Step-by-step explanation:

a) Air is highly compressible. As it has pressure it can also handle atm (Atmosphere) pressure. It makes the drving smooth and gives the required friction for driving. Also it is very easily available.

b) Steel is free from rust and it has high tensile strength. It has the resistence to internal and external cracks.