Pressure remaining the same the volume of a given mass of an ideal gas increases for every degree centigrade rise in temperature by definite fraction of its volume at
0oC
Absolute zero
Its critical temperature
Its Boyle's temperature
Root mean square velocity of a gas molecule is proportional to
m1/2
m0
m-1/2
m
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
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.
At 25oC and 730 mm pressure, 380mL of dry oxygen was collected. If the temperature is constant, what volume will the oxygen occupy at 760mm pressure?
365mL
2g
10g
20g
Absolute zero is defined as the temperature
at which all molecular motion ceases
at which liquid helium boils
at which ether boils
All of the above
A liquid can exist 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
The surface tension of which of the following liquids is maximum?
H2O
C6H6
CH3OH
C2 H5OH
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.
