Retro (Past 13 Years) JEE Main (States Of Matter) - JEE MCQ

a and b are van der Waals’ constants for gases. Chlorine is more easily liquefied than ethane because

(AIEEE 2011)

The molecular velocity of any gas is

(AIEEE 2011)

When r, p and M represent rate of diffusion, pressure and molecular mass, respectively, then the ratio of the rates of diffusion (r_A / r_B) of two gases A and B, is given as 

(AIEEE 2011)

If 10^-4 dm³ of water is introduced into a 1,0 dm³ flask at 300 K, then how many moles of water are in the vapour phase when equilibrium is established?

(Given, vapour pressure of H₂O at 300 K is 3170 Pa; R = 8.314 JK^-1 mol^-1)

(AIEEE 2010)

Which one of the following statements is not true about the effect of an increase in temperature on the distribution of molecular speeds in a gas?

(AIEEE 2005)

As the temperature is raised from 20°C to 40°C, the average kinetic energy of neon atoms changes by a factor of which of the following?

(AIEEE 2004)

In van der Waals' equation of state of the gas law, the constant 'b' is a measure of

(AIEEE 2004)

According to the kinetic theory of gases, in an ideal gas, between two successive collisions a gas molecule travels

(AIEEE 2003)

Based on kinetic theory of gases following laws can be proved

(AIEEE 2002)

For an ideal gas, number of moles per litre in terms of its pressure p, temperature T and gas constant R is

(AIEEE 2002)