One mole of nitrogen gas at 0.8 atm takes 38s to diffuse through a pin-hole, whereas one mole of an unknown compound of xenon with fluorine at 1.6 atm takes 57s to diffuse through the same hole. Determine the molecular formula of the compound.

50 mL of each gas A and gas B take 150 and 200 s respectively for effusing through a pin hole under the similar conditions, if molecular mass of gas B is 36, the molecular mass of gas A will be

At 27^(@) C , H_(2) is leaked through a tiny hole into a vessel for 20 minutes Another unknown gas at the same T and P as that of H_2 is leaked through the same hole for 20 minutes. After effusion of the gas, the mixture exerts a pressure of 6 atm. The H_2 content of the mixture is 0.7 moles. If volume of the container is 3 litres what is the molecular weight of unknown gas ?

To an evacuated vessel with movable piston under external pressure of 1 atm, 0.1 mole of He and 1.0 mole of an unknown compound (vapour pressure 0.68 atm at 0°C) are introduced. Considering the ideal gas behaviour, the total volume (in litre) of the gases at 0°C is close to

A given sample of pure compound contains 9.81 gm of Zn, 1.8 xx 10^23 atoms of chromium and 0.6 mole of oxygen atom. What is the simple molecular formula of the sample ? [Atomic mass of Zn = 65.38]

Density of the vapour of a substance at 1 atm and 500K is 0.36 Kg*m^(-3) . The vapour effuses through a hole at a rate of 1.13 times faster than O_(2) under same conditon. (i) Determine (a) molar mass (b) molar volume (c) compression factor (Z) of the vapour nand (d) which forces among the gas molecules are dominating-attractive or repulsive? (ii) if vapour behaves ideally at 1000K, find average translational kinetic energy of a molecule.

A hydrocarbon having the molecular formula C_6H_(10) , on catalytic hydrogenation absorbs one mole of H_2 . The product obtained on ozonolysis of the compound is OHC""CH_2CH_2CH_2CH_2CHO . Determine the structure of the compound.

One of the reaction that takes place in producing steel from iron ore is the reduction of iron (II) oxide by carbon monoxide to give iron metal and CO_(2) . FeO(s)+CO(g)hArr Fe(s)+CO_(2)(g),K_(p)=0.265atm at 1050K. What are the equilibrium partial pressures of CO and CO_(2) at 1050K if the initial partial pressures are: p_(CO)=1.4 atm & p_(CO_(2))=0.80 atm?