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Class 11 NEET Chemistry States Of Matter Gases And Liquids
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Question : 25
Total: 58
If a gas expands at constant temperature, it indicates that
(2008)
kinetic energy of molecules remains the same
number of the molecules of gas increases
kinetic energy of molecules decreases
pressure of the gas increases
Validate
Solution:
The average translational K.E. of one molecule of an ideal gas will be given by
E
t
=
K
.
E
N
A
=
3
/
2
R
T
N
A
=
3
2
K
T
When
R
N
A
=
Boltzmann constant i.e.
E
t
∝
T
So, at constant temperature K.E. of molecules remains same,
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