It is free.
1 liter
all of it - the air would expand to fit the entire container.
Approx 180ml
One liter of air at 101.325 equals on liter of air at 101.325. It is a trick question of sorts, because the metric unit of measurement "liter" is defined by said amount of matter in an atmosphere of 101.325 KPa.
Depending on the pressure of air
About 91.5 cubic inches.
Water
9 cubicmetre ofair
yes because air can spread out.
Water because a liter is a measurement of space and not mass. Water occupying 1 liter of space is lots heavier than air occupying 1 liter of space. <><><><><> It depends on density. It is possible, given enough pressure, to have one liter of air weigh more than one liter of water.
A liter (of anything) is the same as a cubic decimeter.
What does a liter of air weigh?