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## MCQ (More than One Correct Answer)

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An ideal gas in thermally insulated vessel at internal pressure = p1, volume = V1 and absolute temperature = T1 expands ...
JEE Advanced 2014 Paper 1 Offline

## True or False

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A mixture of ideal gas is cooled upto liquid helium temperature (4.22K) to form an ideal solution
IIT-JEE 1996
In the van der Waal's equation (P + $${{{n^2}a} \over {{V^2}}}$$)(V - nb) = nRT the constant 'a' reflects the actual vol...
IIT-JEE 1993
A gas in a closed container will exert much higher pressure due to gravity at the bottom than at the top.
IIT-JEE 1985
Kinetic Energy of a Molecule is zero at 0oC.
IIT-JEE 1985

## Fill in the Blanks

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Eight gram each of oxygen and hydrogen at 27oC will have the total kinetic energy in the ratio of _______.
IIT-JEE 1989
The rate of diffusion of gas is _______ proportional to both ________ and square root of molecular mass.
IIT-JEE 1986
Cp - Cv for an ideal gas is _______
IIT-JEE 1984

## Numerical

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The value of PV for 5.6 litres of an ideal gas is ________ RT, at NTP.
IIT-JEE 1987
The total energy of one mole of an ideal monatomic gas at 27o is _______ calories.
IIT-JEE 1984

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The average velocity of an ideal gas molecule at 27oC is 0.3m/sec. The average velocity at 927oC will be...
IIT-JEE 1986
Rate of diffusion of a gas is
IIT-JEE 1985
Equal weights of methane and hydrogen are mixed in an empty container at 25oC. The fraction of the total pressure exerte...
IIT-JEE 1984
Helium atom is two times heavier than a hydrogen molecule. At 298 K, the average kinetic energy of a helium atom is
IIT-JEE 1982
The ratio of root mean square velocity to average velocity of a gas molecule at a particular temperature is
IIT-JEE 1981
The temperature at which a real gas obeys the ideal gas aws over a wide range of pressure is
IIT-JEE 1981
Equal weights of methane and oxygen are mixed in an empty container at 25oC. The fraction of the total pressure exerted ...
IIT-JEE 1981

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