Question

a. Bromine and air take about 15 minutes to diffuse completely but
bromine diffuses into a vacuum very rapidly. Why is this so?
b. Bromine particles are almost twice as heavy as Chlorine particles.
Which gas will diffuse faster, Bromine or Chlorine and why?​

Answer 1

Explanation:

A)

In air, there are air particles present and bromine has to interact with these, push them away to make its space for diffusion. In vacuum, there are no molecules unlike air, and bromine finds no resistance to diffuse

B)

Chlorine gas shall diffuse faster than bromine gas. This is in accordance with the Graham's Law which stated that diffusion of gas is inversely proportional to molar mass, since Bromine has more molar mass it will diffuse slowly

Find more about diffusion ;

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Answer 2

Answer:

Diffusion is the random movement of particles.In the diffusion process of bromine and air,the bromine particles continuously collide with the particles of air.This slows down the diffusion rate.But in vacuum there are no particles to collide.Hence bromine diffuses faster in vacuum than in air.

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