The root mean square and most probable speed of the molecules in a gas are [RPMT_2007]
Text Solution
Verified by ExpertsThe correct answer is:
B
Root mean square speed of molecules in a gas is defined as the square root of mean of squares of the speed of different molecules ie,
v rms = 
or v rms = 
(According to kinetic theory of gases)
While most probable speed is the speed which maximum number of molecules in a gas have at constant temperature and is given by
v mp = 
I t is obvious that v rms > v mp.
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