States of Matter - Result Question 21

####21. The temperature of the gas is raised from 27∘C to 927∘C, the root mean square velocity is [1994]

(a) 927/27 time the earlier value

(b) same as before

(c) halved

(d) doubled

Show Answer

Solution:

  1. (d) u∝T or u1/u2=T1/T2

=27+273927+273=3001200=12

∴u2=2u1

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