The increasing order of average molecular velocity at 25 degrees Celcius is:
BrF< NO₂<HCl<H₂O<He
What is molecular velocity?
It is defined whether it is normal speed, root mean square speed and most likely speed. It should be relative to the square to the square root of outright temperature.
The gas with the minimum molar mass will have the highest molecular speed.
Thus, Helium is having the lowest molar mass, therefore it will have the highest molecular velocity.
Find more information about Molecular velocity here:
brainly.com/question/1286862
