The ratio among most probable velocity, mean velocity and root mean square velocity is given by,
√2: √8/π: √3
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).
When V= 22.4L
When T= 12K
Impossible under any conditions
A liquid can exists only
between triple point and critical temperature
at any temperature above the melting point
between melting point and critical temperature
between boiling and melting temperature
Van der waals' real gas, act as an ideal gas, at which condition?
High temperature, low pressure
Low temperature, high pressure
High temperature, high pressure
Low temperature, low pressure
Select the correct statement. In the gas equation pV= nRT
n is the number of molecules of a gas
v denotes volume of one mole of the gas
n moles of the gas have a volume V.
P is the pressure of the gas when only one mole of the gas is present.
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.
1/2 a: √3/4 a: 1/ 2√2 a
1/2 a: √3 a: 1/ √2 a
1/2 a: √3/2 a: √2/2 a
1a: √3a: √2 a
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?
350 k and 3 atm
550 k and 1 atm
250k and 4 atm
450 k and 2 atm