The volume ofadsorbed nitrogen at 77.5 K was measured as a function of25 the equilibrium pressure over a range from 10 Torr tothe saturation vapor pressure.

• 被吸附的氮气的容量在77.；5 K 被了作为25 功能平衡压力在一个范围从10 乇对饱和蒸气压力。