1

IIT-JEE 1986

MCQ (Single Correct Answer)
The average velocity of an ideal gas molecule at 27oC is 0.3m/sec. The average velocity at 927oC will be
A
0.6 m/sec
B
0.3 m/sec
C
0.9 m/sec
D
3.0 m/sec
2

IIT-JEE 1985

MCQ (Single Correct Answer)
Rate of diffusion of a gas is
A
directly proportional to its density
B
directly proportional to the square root of its molecular weight
C
inversely proportional to the square root of its molecular weight.
D
directly proportional to its molecular weight
3

IIT-JEE 1984

MCQ (Single Correct Answer)
Equal weights of methane and hydrogen are mixed in an empty container at 25oC. The fraction of the total pressure exerted by hydrogen is
A
1/2
B
8/9
C
1/9
D
16/17
4

IIT-JEE 1982

MCQ (Single Correct Answer)
Helium atom is two times heavier than a hydrogen molecule. At 298 K, the average kinetic energy of a helium atom is
A
two times that of a hydrogen molecule
B
four times that of a hydrogen molecule
C
same as that of a hydrogen molecule
D
half that of a hydrogen molecule

Questions Asked from States of Matter

On those following papers in MCQ (Single Correct Answer)
Number in Brackets after Paper Indicates No. of Questions
IIT-JEE 1986 (1)
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IIT-JEE 1985 (1)
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IIT-JEE 1984 (1)
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IIT-JEE 1982 (1)
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IIT-JEE 1981 (3)
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