Q. 674.5( 6 Votes )
Bromine and air t
If bromine gas is allowed to enter a gas jar containing a vacuum,
the red-brown colour instantly fills the jar
because there are no air molecules to collide with.
This shows that the bromine molecules are moving very fast. When bromine is added to a gas jar filled with air, the red-brown gas is seen to slowly diffuse through the air.
The many collisions between the bromine molecules
and the air molecules slow down the rate
at which the red-brown bromine gas fills the jar.
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