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IIT JEE Advanced 2007 Paper 2
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© examsnet.com
Question : 12
Total: 66
STATEMENT-1: The total translational kinetic energy of all the molecules of a given mass of an ideal gas is 1.5 times the product of its pressure and its volume
because
STATEMENT-2: The molecules of a gas collide with each other and the velocities of the molecules change due to the collision.
Statement-1 is True, Statement-2 is True; Statement- 2 is a correct explanation for Statement-1.
statement-1 is True, Statement-2 is True; Statement- 2 is NOT a correct explanation for Statement-1.
Statement-1 is True, Statement-2 is False.
Statement-1 is False, Statement-2 is True.
Validate
Solution:
We have
1
2
M
−
c
2
=
3
2
R
T
=
3
2
P
V
where M is the molar mass. Statement-2 is a fundamental statement which leads to the above relation, on applying the kinetic theory of gases and statistical manipulations.
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