The density of air at conditions P = 1 atm and T = 20.0 °C , is 1.28 kg/m^3. At what pressure is the density 0.64 kg/m^3 if the temperature and number of molecules are kept constant? Answer in units of atm.

c

explanation:

the earths atmosphere is made up of nitrogen and oxygen. solids can turn into gasses through a process called sublimation. sublimation is the transition of a substance directly from the solid to the gas phase, without passing through the intermediate liquid phase.

hope this : d

c because the news are a source of information of things that happen on the daily and shows evidence about that particular topic

c. magnitude and direction