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By what factor does the average velocity...

By what factor does the average velocity of a gaseous molecule increase when the temperature (in Kelvin) is doubled?

A

`1.4`

B

`2.0`

C

`2.8`

D

`4.0`

Text Solution

Verified by Experts

The correct Answer is:
A
Average velocity `=sqrt((8RT)/(pi m))`
`:. V_(av) prop sqrt(T)`
`:. (V_(av))_(2)/((V_(av))_(1))=sqrt((2T)/(T))= 1.4`
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