Question

we can easily move our hand in air but to do the same through a solid block of wood we need a karate expert ?

plz answer faster with explaination

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Answer 1

The particles of a gas are constantly moving in all the directions with different speeds. Therefore they do not have a fixed volume and hence completely fill the vessel in which they are kept.

Answer 2

Air has more intermolecular space between atoms so we can easily move our hands but solids had no intermolecular space between atoms so it is difficult to move our hands in solid