carbon
Nitrogen
moving randomly
64g/mol
oxygen
Gas diffuses in space.
carbon
Oxygen diffuses into cells. Carbon dioxide diffuses out.
Co2
The rate of diffusion of a gas is inversely related to the molecular weight of that gas. The lighter the gas, the faster it diffuses. Hydrogen is the lightest of all gases having a molecular weight of only 2. Thus it diffuses faster than all others.
Oxygen
Nitrogen
CO diffuses faster than CO2 because it is a smaller molecule
o2 diffuses into blood from alveoli of lungs through the respiratory membran.
oxygen
It spreads evenly throughout its containers/surroundings.
carbon dioxide