Kinetic Theory Of Gases MCQ Level – 1 (part - 2) - IIT JAM MCQ

V = nRT    (n = number of moles)
 (N = Number of molecules, N_A = Avogadro number)
∴ 

The correct answer is: 4 : 1

As 32gm O₂ means 1 mole of O₂ molecule, therefore 8gm of O₂ means 1/4 mole i.e., n = 1/4
∴ pV = nRT
⇒ pV = 1/4 RT
The correct answer is: 

From  PV α MT
or 
Here (M/P) epresents the slope of curve drawn on volume and temperature axis.
For the first condition, slope (M/P) graph is D.  (given)
For second condition,
Slope  i.e., slope becomes four times so graph A is correct
for this condition.
The correct answer is:
A

⇒ 

⇒ gas is hydrogen.
The correct answer is: H₂

Ideal gas equation, in terms of density is

⇒ 
⇒ 

The correct answer is: 75/76

At lower pressure, we can assume that given gas behaves as ideal gas so   but when pressure increase, the decrease in volume will not take place in same proportion so PV/RT will increase.
The correct answer is: Curve B

Number of moles in first vessel

and number of moles in 2nd  vessel

If both vessels are joined together, then quantity of gas remains same i.e.

The correct answer is: 

Due to increase in temperature, root mean square velocity of gas molecule increases. So they strike the wall more often with higher velocity. Hence, the pressure exerted by a gas on the walls of the container increases.
The correct answer is: strike the wall more often with higher velocities

Because there is zero attraction between the molecules of ideal gas.
The correct answer is: Impossible