The ratio  among  most  probable  velocity,  mean  velocity  and root mean square  velocity  is given by,

Under what  conditions will a pure  sample of an  ideal gas not only  exhibit  a pressure  of 1 atm but  also  a concentration of  1mol  L^-1? (R= 0.082  L  atm  mol^-1 deg^-1).

A  liquid  can exists  only

Van der  waals'  real gas, act as an ideal  gas, at which condition?

Select the correct statement. In the gas equation pV= nRT 

When electrons are trapped into the  crystalline anion  vacancy,  the defect  is known as

If 'a'  stands for the edge  length of the cubic  systems.  simple cubic, body centred cubic  and face centred  cubic, then the  ratio of radii of the spheres  in these  systems  will be respectively.

The number of  atoms contained in a fcc unit cell of a monoatomic substance is

Zn converts  from its melted  state to its  solid state,  it has hcp structure,  then find out the number of nearest atoms.

At  which one  of the following  temperature  pressure conditions, the deviation of a gas  from ideal behavior  is  expected  to be  minimum?