Distribution of fraction of molecules with velocity is represented in the figure.
The velocity corresponding to point X is
1.
2.
3.
4. none of the above
A ballon having weight 50 kg is filled with 685.2 kg of helium gas at 760 mm pressure and . What will be its pay load if it displaces 5108 kg of air?
1. 4372.8 kg
2. 4392.6 kg
3. 4444.4 kg
4. 3482.9 kg
For non-zero value of force of attraction between gas molecules for larger volume, gas equation will be
1.
2.
3.
4. PV = nRT
Four rubber tubes are respectively filled with . Which tube will be reinflated first?
1. filled tube
2. filled tube
3. He filled tube
4. filled tube
A gas has the van der Waal constants, a =1.49 . Its Boyle's temperature is nearly
1. 50
2. 354
3. 454 K
4. 408 K
One litre of gas A at 2 atm pressure at 27 and two litres of gas B at 3 atm pressure at 127 are mixed in a 4 litre vessel. The temperature of the mixture is maintained at 327. What is the total pressure of the gaseous mixture?
1. 3.93 atm
2. 3.25 atm
3. 4.25 atm
4. 6.25 atm
The root mean square velocity of one mole of a monoatomic gas having molar mass M is .
The relation between the average kinetic energy (E) of the gas and is
1.
2.
3.
4.
At and 1 atm, if the density of liquid water is 1.0 g and that of water vapour is 0.0006 g , then the volume occupied by water molecules is 1 litre of steam at that temperature
1. 6
2. 60
3. 0.6
4. 0.06
The compressibility factor of a gas is less than unity at STP. The correct statement among the following is -
1. > 22.4 L
2. < 22.4 L
3. = 22.4 L
4. = 44.8 L
Which of the following statement(s) are correct:
(1) A plot of log KP versus 1/T is linear
(2) A plot of log (X) versus time is linear for a first-order reaction '
(3) A plot of log P versus 1/T is linear at constant volume
(4) A plot of P versus 1/V is linear at a constant temperature.
(1) 1, 2
(2) 2, 4
(3) 2, 3
(4) 1, 4