Questions
When the temperature of a gas is raised from 27°C to 90°C, the percentage increase in the r.m.s. velocity of the molecules will be
a
10%
b
15%
c
20%
d
17.5%
detailed solution
Correct option is A
vrms=3RTM⇒v2v1=T2T1=(273+90)(273+30)=1.1% increase =v2v1−1×100=0.1×100=10%Talk to our academic expert!
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