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Byju's Answer
Standard XII
Chemistry
Molecular Speeds - Vrms, Vavg, Vmps
Oxygen at 1 a...
Question
Oxygen at 1 atmosphere and
0
∘
C
has a density of
7.5
g L
−
1
. Find the rms speed of oxygen molecule in
m
s
−
1
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Solution
P
=
1
atm
=
1.01
×
10
5
Pa
taking 1.01 approximately equal to 1 for calculation
d
=
7.5
g L
−
1
=
7.5
kg m
−
3
We know that,
c
=
√
3
P
d
=
√
3
×
1.01
×
10
5
7.5
=
√
10
6
25
=
0.2
×
10
3
=
200
ms
−
1
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0
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Molecular Speeds - Vrms, Vavg, Vmps
Standard XII Chemistry
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