Question

the contents of a can of air freshener are gaseous when sprayed but remain a liquid while in the can due to

Answer 1

primarily pressure. At constant volume and temperature . A gas can be liquefied at an appropriate pressure which is usually greater that atmospheric pressure of 14.7 lbs/sq..in. . When the liquid is released to a lower pressure it becomes a gas. To do this requires energy so the gas comes out feeling colder than the ambient temperature.