If Z is a compressibility factor, van der Waals’ equation at low pressure can be written as
(JEE Main 2014)
For gaseous state, if most probable speed is denoted by average speed by and mean square speed by C, then for a large number of molecules, the ratios of these speeds are
(JEE Main 2013)
The compressibility factor for a real gas at high pressure is
a and b are van der Waals’ constants for gases. Chlorine is more easily liquefied than ethane because
The molecular velocity of any gas is
When r, p and M represent rate of diffusion, pressure and molecular mass, respectively, then the ratio of the rates of diffusion (rA / rB) of two gases A and B, is given as
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)
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?
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?
In van der Waals' equation of state of the gas law, the constant 'b' is a measure of
According to the kinetic theory of gases, in an ideal gas, between two successive collisions a gas molecule travels
Based on kinetic theory of gases following laws can be proved
For an ideal gas, number of moles per litre in terms of its pressure p, temperature T and gas constant R is