As the temperature is raised from , the average kinetic energy of neon atoms changes by a factor:
(1) 2
(2)
(3)
(4)
The density of neon will be highest at:
(1) STP
(2) 0 C,2 atm
(3) 273 C, 1 atm
(4) 273 C,2 atm
At 27 C, the ratio of root mean square speeds of ozone to oxygen is-
1.
2.
3.
4. 0.25
How many mole of He gas occupy 22.4 litre at 30 C and one atmospheric pressure?
(1) 0.90
(2) 1.11
(3) 0.11
(4) 1.0
4.0 g of argon gas pressure P and temperature T K in a vessel. On increasing the temperature by 50o, 0.8 g of argon was given out to maintain the pressure P.
The original temperature was:
1. 73 K
2. 100 K
3. 200 K
4. 510 K
Correct statement regarding the heating of a liquid is -
1. Surface tension increases
2. Surface tension is lowered
3. Viscosity increases
4. Surface tension is not affected
Which of the following laws leads us to arrive at the conclusion that 1 g-molecule of each gas at STP occupies a volume of 22.4 L?
1. Dalton's law
2. Law of combining volumes
3. Avogadro's law
4. Boyle's law
0.1 mole of gas absorbs 41.75 J of heat, the rise in temperature occurs , the gas must be
(1) Triatomic
(2) Diatomic
(3) Monoatomic
(4) (2) and (3) both
Van der Waals real gas, act as an ideal gas, at :
(1) High temperature, low pressure.
(2) Low temperature, high pressure.
(3) High temperature, high pressure.
(4) Low temperature, low pressure.