Which of the following properties/factors govern and give a proper reasoning for the observation of the given two scenarios A and B?

A: Air is used to inflate tyres.

B: Steel is used to make railway lines or tracks.

see full answer

Your Exam Success, Personally Taken Care Of

1:1 expert mentors customize learning to your strength and weaknesses – so you score higher in school , IIT JEE and NEET entrance exams.

An Intiative by Sri Chaitanya

Gases do not have any fixed shape while solids have a fixed shape.

Gases have a fixed shape while solids do not have a fixed shape.

Gases have low density while solids have high density.

Gases can flow while solids do not flow.

answer is A.

(Unlock A.I Detailed Solution for FREE)

Best Courses for You

JEE

NEET

Foundation JEE

Foundation NEET

CBSE

Detailed Solution

The properties/factors govern and give a proper reasoning for the observation of the given two scenarios A and B is that gases do not have any fixed shape while solids have a fixed shape.
Air is used to inflate tyres because air is gaseous. Gaseous substances can take the shape of any substance into which they are filled. This happens because the intermolecular forces of attraction in gases are very small. Similarly, steel being a solid, has a fixed shape and cannot be compressed much under pressure. So, when the train travels over the railway lines, immense pressure will be exerted on the steel tracks. As steel can maintain its shape, it is used in making railway lines.

Watch 3-min video & get full concept clarity