A and B are ideal gases. The molecular weights of A and B are in the ratio of 1 : 4. The pressure of a gas mixture containing equal weights of A and B is P atm. What is the partial pressure (in atm) of B in the mixture ?
A. P / 5
B. P / 2
C. P / 2.5
D. 3P / 4
P / 5
At 270C, 500 mL of helium diffuses in 30 minutes. What is the time (in hours) taken for 1000 mL of SO2 to diffuse under same experimental conditions ?
At 270C the ratio of root mean square velocities of ozone to oxygen is :
A certain mass of a gas occupies a volume of 2 L at STP. To what temperature the gas must be heated to double its volume, keeping the pressure constant
The average kinetic energy of one molecule of an ideal gas 270C and 1 atm. pressure is
A. 900 cals k-1 mol-1
B. 6.21 x 10-21 J k-1 molecule-1
C. 336.7 J.k-1 molecule-1
D. 374.13 J.k-1 molecule-1
6.21 x 10<sup>-21</sup> J k<sup>-1</sup> molecule<sup>-1</sup>
n moles of an ideal gas at temperature T (in kelvin) occupy VL of volume, exerting a pressure of P atmospheres.What is the concentration (in mol / L)?
A. P / RT
B. PT / R
C. RT / P
D. R / PT
P / RT
A mixture contains 10 g of oxygen, 28g of nitrogen and 8g of CH4.Total pressure of mixture is 740mm.What is the partial pressure of nitrogen in mm
Aniline is treated with NaNO2 and HCl at 00C,the product formed is:
C. benzene diazonium salt
D. amino phenol
benzene diazonium salt
If a gas contains only three molecules that move with velocities of 100,200,500 ms-1.What is the rms velocity of that gas in ms-1
The total pressure of a mixture of 6A of O2 and 5.6 g of N2 present in a 2 litre vessel is 1200 mm. What is the partial pressure (in mm) of nitrogen?
What is the temperature at which the kinetic energy of 0.3 moles of Helium is equal to the kinetic energy of 0.4 moles of Argon at 400 K ?
A. 400 K
B. 873 K
C. 533 K
D. 300 K
A certain sample of gas has a volume of 0.2 litres measured at 1 atm. pressure and 00 C. At the same pressure but at 273 0c. Its volume will be
A. 0.4 litres
B. 0.8 litres
C. 27.8 litres
D. 55. 6 litres
A sample of gas has a volume of 0.2 lit. measured at 1 atm. pressure and 00C. At the same pressure, but at 2730C its volume will become
A. 0.1 litre
B. 0.4 litre
C. 0.8 litre
D. 0.6 litre
The r.m.s. velocity of an ideal gas at 300 K is 12240 cm/sec. What is the most probable velocity at that temperature?
A. 10000 cm/s
B. 11280 cm/s
C. 13250 cm/s
D. 12240 cm/s