19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
At identical temperature and pressure, the rate of diffusion of hydrogen gas is 3 3 times that of a hydrocarbon having molecular formula
2 g of hydrogen diffuse from a container in 10 min. How many gram of oxygen would diffuse through the same container in the same time under similar conditions? (Manipal 2010)
A gaseous mixture contains 2 moles of A and 3 moles of B. Total pressure of the mixture is 5 atm. The partial pressures of A and B are respectively. (AFMC 2010)
In which one of the following, does the given amount of chlorine exert the least pressure in a vessel of capacity 1 dm3 at 273 K? (KCET 2010)
If P, V, M, T and R are the symbols of pressure, volume, molecular weight, temperature and gas constant respectively. What is the equation of density of ideal gas? (MPPMT 2010)
The temperature at which 28 g of N2 will occupy a volume of l0.0 L at 2.46 atm is (RPMT 2010)
Which of the following expression is true regarding gas laws? (w = weight; M = molecular mass) (UP CPMT 2010) (a) T M w T M w (b) T M w T M w (c) T M w T M w (d) T M w T M w
0.5 mole of each of H2, SO2 and CH4 are kept in a container. A hole was made in the container. After 3 h, the order of partial pressures in the container will be (KCET 2009) (a) SO CH H P P P (b) H SO CH P P P (c)…
If the ratio of the rates of diffusion of two gases A and B is 4 : 1, then the ratio of their densities in the same order is (J&K CET 2009)
The ratio of rates of diffusion of helium and methane under same conditions of temperature and pressure will be (CG PMT, Haryana PMT 2009)
8.2L of an ideal gas weighs 9.0g at 300 K and 1 atm pressure. The molecular mass of the gas is (Manipal 2009)
A certain mass of the oxygen gas occupies 7 L volume under a pressure of 380 mm Hg. The volume of the same mass of the gas at standard pressure, with temperature remaining constant, shall be (UP CPMT 2009)
By the ideal gas law, the pressure of 0.60 mole NH3 gas in a 3.0 L vessel at 25°C is (AFMC 2009)
The term that corrects for the attractive forces present in a real gas in the van der Waals equation is (KCET 2009)
If two molecules of A and B have mass 100 kg and 64 kg and rate of diffusion of A is 12 × 10-3, then what will be the rate of diffusion of B? (BCECE 2008)
In a flask of 'V' litres, 0.2 mole of O2, 0.4 mole of N2, 0.1 mole of NH3 and 0.3 mole of He gases are present at 27°C. If total pressure exerted by these non-reacting gases is 1 atm, the partial pressure exerted by N…
When a bottle of dry ammonia and a bottle of dry HCl connected through a long tube are opened simultaneously at both ends, at first (Kerala CEE 2008)
In order to increase the volume of a gas by 10%, the pressure of the gas should be (KCET 2008)
The volume-temperature graphs of a given mass of an ideal gas at constant pressure are shown below: (DUMET 2008) What is the correct order of pressure? (a) p p p (b) p p p (c) p p p (d) p p p
A cylinder of 5 L capacity, filled with air at NTP is connected with another evacuated cylinder of 30 L capacity. The resultant air pressure in both the cylinders will be (AMU 2008)
A 4.0 dm3 flask containing N2 at 4.0 bar was connected to a 6.0 dm3 flask containing helium at 6.0 bar, and the gases were allowed to mix isothermally. Then, the total pressure of the resulting rnixture will be. (Kera…
The density of a gas is 1.964 g dm-3 at 273 K and 76 cm Hg. The gas is (AFMC 2008)
The critical temperature of water is higher than that of O2 because the H2O molecule has
An ideal gas can’t be liquefied because
Which set of conditions represents easiest way to liquiefy a gas?