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VITEEE 2013 Solved Paper
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© examsnet.com
Question : 8
Total: 120
If
−
v
,
v
rms
and
v
p
represent the mean speed, root mean square and most probable speed of the molecules in an ideal monoatomic gas at temperature T and if m is mass of the molecule, then
v
p
< v <
v
rms
no molecule can have a speed greater than
√
2
v
max
no molecule can have a speed less than
v
p
√
2
None of the above
Validate
Solution:
Mean speed,
−
v
=
√
8
k
T
π
m
= 0.29
v
rms
rms speed,
v
rms
=
√
3
k
T
m
Most probable speed
v
p
=
√
2
k
T
m
= 0.816
v
rms
i.e.,
v
p
<
−
v
<
v
rms
© examsnet.com
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