The temperature at which rate of diffusion of would be 1.625 times the rate of diffusion of
1. 110 K
2. 173 K
3. 373 K
4. 273 K
If Vrms of m/s. What is the value of Vrms of at 1200K?
1. 1.9
2. 3.8 m/s
3. 0.475 m/s
4. 0.95 m/s
The average velocity of ideal gas molecules at 27 is 0.3 m/sec. The average velocity at 927 will be
1. 0.6 m/sec
2. 0.3 m/sec
3. 0.9 m/sec
4. 3.0 m/sec
equal masses of methane and hydrogen are mixed in an empty container at The fraction of the total pressure exerted by hydrogen is
1. 1/2
2. 8/9
3. 1/9
4. 16/17
A 2.24 L cylinder of oxygen at STP is found to develop a leakage. When the leakage was plugged, the pressure dropped to 570 mm of Hg. The number of moles of gas that escaped will be:
1. 0.050
2. 0.025
3. 0.075
4. 0.01
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