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Engineering Thermodynamics
?

The ratio of root mean square velocity to average velocity of gas molecules at a particular temperature is

Answer & Solution
Correct Answer: Option B
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3 Comments
Chirag Pandav
Chirag Pandav 3 years ago
OPTION B AND C SAME
Pramod Sharma
Pramod Sharma 5 years ago
Why b and c is same and c is not correct pl correct
Mahira Sultana
Mahira Sultana 6 years ago
As we know, the 2 types of speed are defined as-

Root mean square speed, v
rms
​
=
M
3RT
​

​


Average speed, v
average
​
=
πM
8RT
​

​


Therefore, their ratio becomes,
v
average
​

v
rms
​

​
=
8π
3
​

​
=1.086:1