If p, V, M, T and R are pressure, volume, molar mass, temperature and gas constant respectively, then for an ideal gas, the density is given by,
RT/ PM
P/RT
M/V
PM/RT
The ratio among most probable velocity, mean velocity and root mean square velocity is given by,
1:2:3
1: √2:√3
√2:√3: √8/π
√2: √8/π: √3
The pyknometric density of sodium chloride crystal is 2.165x103kg m-3. While its X -ray density is 2.178 x103 kgm-3. The fraction of unoccupied sites in sodium chloride crystal is
5.96x10-1
5.96x10-3
5.96
5.96x10-2
Which one of the following is wrong statement for gases?
Gases do not have a definite shape and volume
Volume of the gas is equal to volume of container confining the gas
Confined gas exerts uniform pressure on the walls of its container in all directions.
Mass of gas can not be determined by weighing a container in which it is enclosed.
A solid with high electrical and thermal conductivity from the following is
Si
Li
NaCl
Ice
Which is not true in case of ideal gas?
It can not be converted into a liquid
There is no interaction between the molecules
All molecules of the gas move with same speed
At a given temperature, pV is proportional to the amount of gas.
Most crystals show good cleavage because their atoms, ions or molecules are
weakly bonded together
strongly bonded together
spherically symmetrical
arranged in planes
500 ML of nirogen at 27oC is cooled to -5oC at the same pressure. The new volume becomes
326.32 mL
446.66mL
546.32mL
771.56mL
A gas is said to behave like an ideal gas when the relation PV / T = constant. When do you expert a real gas to behave like an ideal gas?
When the temperature is low
When both the temperature and pressure are low
When both the temperature and pressure are high
When the temperature is high and pressure is low.