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JEE Main 28 June 2022 Shift 2 Solved Paper
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© examsnet.com
Question : 39
Total: 90
What will be the effect on the root mean square velocity of oxygen molecules if the temperature is doubled and oxygen molecule dissociates into atomic oxygen?
[28-Jun-2022-Shift-2]
The velocity of atomic oxygen remains same
The velocity of atomic oxygen doubles
The velocity of atomic oxygen becomes half
The velocity of atomic oxygen becomes four times
Validate
Solution:
As
v
r
m
s
=
√
3
R
T
M
0
T
is doubled and oxygen molecule is dissociated into atomic oxygen molar mass is halved.
So,
v
r
m
s
′
=
√
3
R
T
×
2
T
0
M
0
∕
2
=
2
v
r
m
s
So velocity of atomic oxygen is doubled.
© examsnet.com
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