Question

process responsible for spreading smell of cake in a house ????

Answer 1

It is due to the property of matter 'Matter moves continuously'.

That is, when particles of a matter (smell of cake) mix with the particles of air, they as per the property given above, start spreading everywhere.

Hope it helps :)

Answer 2

Explanation:

diffusion process

Smell of cake spreads through out the house while baking because of diffusion process in which the molecules move from a place where they are concentrated close together to a place where they are less concentrated and when molecules spread out evenly diffusion seems to stop.

$hope \: it \: helps \: you \:$