Two vessels of the same size are at the same temperature.One of them contains `1 kg` of hyrdogen (molecular weight `2`) and the other contains `1 kg` of nitrogen (molecular weight `28`).
Which of the vessel is at higher pressure?Why?

Two vessels of the same size are at the same temperature.One of them contains 1 kg of hyrdogen (molecular weight 2 ) and the other contains 1 kg of nitrogen (molecular weight 28 ). Which of the vessels contains more molecules?

Two vessels of the same size are at the same temperature.One of them contains 1 kg of hyrdogen (molecular weight 2 ) and the other contains 1 kg of nitrogen (molecular weight 28 ). In which vessel is the average molecular speed greater?How many times greater?

1 mole of a compound contains 1 mole of C and 2 moles of O. The molecular weight of the compound is

Caffein has molecular weight of 194. It contain 28.9% by mass of nitrogen. Number of atoms of nitrogen in one molecule of it is

A certain volume of Ar gas require 45 sec to effuse through a hole at a certain pressure and temperature. The same volume of another gas of unknown molecular weight require 60 sec to pass through the same hole under the same condition of temperature and pressure. The molecular weight of gas is

A vessel of volume 5 litre contain 1.4 g of nitrogen at a temperature 1800 K. The pressure of the gas if 30% of its molecules are dissociated into atoms at this temperature is

The vapour pressure of pure liquid A is 10 torr and at the same temperature , when 1 g, of B is dissolved in 20 g of A, its vapour pressure reduced by 1 torr. If the mol wt.of A is 200 u, then the molecular weight of B is