Both propane and carbon dioxide deffuse at the same rate under identical conditions of temperature and pressure. Why?

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

Both 'N_2 O' and 'CO_2' have similar rates of diffusion under similar conditions of temperature and pressure. Explain.

Certain data regardin bvarious gasses kept under the same conditions of temperature and pressure are given below. Which gas law is applicable here?

Two differen gases 'A' and 'B' are filled in separate containers of equal capacity under the same conditions of temperature and pressure. On increasing the pressure slightly, the gas 'A' liquefies but gas B does not liquefy even on applying high pressure until it is cooled. Explain this phenomenon.

Certain data regardin bvarious gasses kept under the same conditions of temperature and pressure are given below. Complete the table?