One mole of an ideal gas at standard temperature and pressure occupies 22.4 L (molar volume). What is the ratio of molar volume to the atomic volume of a mole of hydrogen ? (Take the size of hydrogen molecule to be about `1 overset@A`). Why is this ratio so large ?

A cylinder with a movable piston contains3moles of hydrogen atstandard temperature and pressure. The walls of the cylinder are made of a heat insulator, and the piston is insulated by having a pile of sand on it. By what factor does the pressure of the gas increase if the gas is compressed to half its original volume ?

Molar volume is the volume occupied by 1 mol of any (ideal) gas at standard temperature and pressure (STP : 1 atmospheric pressure, 0^@C ). Show that it is 22.4 litres.

A sample of gas occupies 1.50L at 25 o C. If the temperature is raised to 60 o C, what is the new volume of the gas if pressure remains constant?

2.9 g of a gas at 95^(@)C occupied the same volume as 0.184 g of dihydrogen at 17^(@)C at the same pressure. What is the molar mass of the gas ?

A balloon is filled with hydrogen at room temperature, it will burst if pressure exceeds 0.2 bar. If at 1 bar pressure the gas occupies 2.27 L volume, upto what volume can the balloon be expanded?

The unit of length convenient on the atomic scale is known as an angstrom and is denoted by overset@A : 1 overset@A = 10^-10 m . The size of a hydrogen atom is about 0.5 overset@A . What is the total atomic volume in m^3 of a mole of hydrogen atoms ?

1M HCl and 2 M HCl are mixed in volume ratio 4:1. What is the final molarity of HCl solution?