Caption: Triple point of nitrogen. Footage of liquid nitrogen in a gas jar being brought to its triple point as the pressure is reduced using a pump. The triple point is where a substance exists in three phases (gas, liquid and solid) in thermodynamic equilibrium. For nitrogen, this point is at 0.124 of an atmosphere and a temperature of minus 210 degrees Celsius. The pressure gauge shows the reduction in pressure towards this point. Nitrogen ice and gas both form along with the liquid when the triple point is reached. At the end of the clip, the pressure is restored to normal. For a close-up of this experiment, see clip K005/4123.

Release details: Model release not required. Property release not required.

Keywords: clip, demonstration, education, educational, evacuated, experiment, film, footage, gage, gas, gas jar, gas law, gas laws, lab, laboratory, liquid, low pressure, low temperature, motion, n2, nitrogen, nitrogen ice, no-one, nobody, physical, physical chemistry, physics, pressure, pressure gauge, pump, school science, solid, studio shot, temperature, thermodynamic equilibrium, triple point, vacuum, video, white background

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Triple point of nitrogen

K005/4122 Rights Managed

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Duration: 00:01:36.15

Frame size: 1920x1080

Frame rate: 25

Audio: No

Format: QuickTime, Photo JPEG 100%, progressive scan, square pixels

File size: 2.8G


Capture format: Sony FS700

Codec: Apple ProRes 422 (HQ)

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