Question 1. Calculate the volume of 3 mole of an ideal gas at STP
Question 2. Calculate the mass of 4 cm3 of nitrogen at STP
Question 3.Equal masses of air are filled and sealed in two container ,one of volume V0 and other of the volume 4V0.If the first vessel is maintained at 200K and other at 800K.Find the ratio of the pressure in the two containers
Question 4.An glass bulb of volume 390cc was sealed at a pressure of 2*10-3 mm of mercury at 25° C. Compute the number of the air molecules in the bulb .Avogadro number=6x1023 per mole, Density of mercury=13600Kg/m3
Question 5.A gas container has a walls that can bear maximum pressure of 2.2x106 pa.The container contains gas at 4x105 pa and 350K.If the container is steadily heated then neglecting change in volume, Calculate the temperature at which container will break?
Question 6. Density of an ideal gas at STP is 3x10-3 gm/cm3.Calculate the molecular weight of the gas
Question 7. A vessel of volume V=30 L contains ideal gas at temperature 0° C. After the portion of gas has been let out, the pressure in the vessel decreased by ΔP=.78 atm(Temp remaining constant).Find the mas of the gas released. The gas density under normal condition is ρ=1.3 g/L
Question 8. A vessel of volume V=20L contains a mixture of hydrogen and helium at T=20° C and Pressure P=2.0 atm.The mass of the mixture is equal to m=5g.Find the ratio of the mass of the hydrogen to that mass of the helium in the mixture. Given R=.082 L.atm.mol-1.K-1
Question 9. Find the rms speed of the hydrogen molecules in a sample of hydrogen gas at 250K .Find the temperature at which rms speed is three times the speed at 250K
Question 10.An ideal gas sample of .203 gm occupies 1000cm3 at STP.Calculate the RMS speed of the molecules
Question 11. The mean speed of the molecules of a hydrogen sample equals the mean speed of the molecules of helium sample. Calculate the ratio of temperature of hydrogen sample to the temperature of the helium sample.
Question 12. Find the ratio of the mean speed of the hydrogen molecule to the mean speed of the oxygen molecules in a sample containing mixture of two gases
Question 13. A vessel is partitioned by a fixed diathermic separator. Different ideal gases are filled in the two parts. The rms speed of the molecules in the left part equals the mean speed in the right part. Calculate the ratio of the mass of the molecule in the left part to the mass of the molecule in the right part?
Question 14.An air bubble of radius 3.00mm is formed at the bottom of the 4m deep river. Calculate the radius of the air bubble as it comes to the surface .Atmospheric pressure=105 Pa and density of the water=1000 kg/m3