Related Questions
and gas are introduced simultaneously from the two ends of a long tube. A white ring of appears first
Nearer to the HCl end
At the centre of the tube
Throughout the tube
Nearer to the end
In two vessels of 1 L each at the same temperature 1 g of are taken, for these
values will be same
Kinetic energy per mol will be same
Total kinetic energy will be same
Pressure will be same
Kinetic energy of one mole of an ideal gas at 300 K in kJ is
3.74
348
34.8
3.48
One mole of oxygen at 273 K and one mole of sulphur di-oxide at 546 K are taken in two separate containers, then
Kinetic energy of {{\rm{O}}_2} > {\rm{kinetic\;energy\;of}}\,\;{\rm{S}}{{\rm{O}}_2}
Kinetic energy of {{\rm{O}}_2} < {\rm{kinetic\;energy\;of}}\,\;{\rm{S}}{{\rm{O}}_2}
Kinetic energy of both are equal
None of the above
A balloon filled with methane is pricked with a sharp point and quickly plunged into a tank of hydrogen at the same pressure. After sometime, the balloon will have
Enlarged
Collapsed
Remained unchanged in size
Ethylene inside it
The gases are at absolute temperature and respectively. The ratio of average kinetic energy of their molecules is:
Which Statement about evaporation is incorrect ?
Evaporation takes place at all temperature
Evarporation occurs only at the surface
Evarporation produces cooling
Average KE of residual liquid molecules increases as evaporation occurs
The root mean square speed of an ideal gas in a closed container of fixed volume is increased from . Which statement might correctly explain how the change accomplished?
By heating the gas, the temperature is doubled
By heating the gas, the pressure is made four times
By heating the gas, the volume is tripled
By heating the gas, the pressure is made three times
If temperature of 1 mole of gas is increased by 50\,^\circ C calculate the change in kinetic energy of the system
Which is valid at absolute zero?
of the gas becomes zero, but molecular motion does not become zero
of the molecules becomes zero and the molecular motion also becomes zero
of the gas decreases but does not become zero
None of the above
