States of Matter - Result Question 18

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

[2011]

(a) 2.0

(b) 2.8

(c) 4.0

(d) 1.4

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Solution:

  1. (d) Average velocity =8RTπM

 i.e., vTV2V1=2TT=1.41



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