Caption: Water boiling under low pressure. Footage of water boiling under low pressure in a gas jar as the air is evacuated using a pump. The pressure gauge shows the pressure dropping as the air is pumped out. At room temperature and 1 atmosphere of pressure, water boils at around 100 degrees Celsius. This boiling point drops as the pressure decreases. At a room temperature of 20 degrees Celsius, water will boil at a pressure of 0.02 of an atmosphere. At the end of the clip, the pressure is restored to normal. For a close-up of this experiment, see clip K005/4105.

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

Keywords: boil, boiling, bubbles, bubbling, clip, demonstration, education, educational, evacuated, experiment, film, footage, gage, gas, gas jar, gas law, gas laws, h2o, lab, laboratory, low pressure, motion, no-one, nobody, physical, physical chemistry, physics, pressure, pressure gauge, pump, room temperature, school science, studio shot, temperature, vacuum, vapour, video, water, white background

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Water boiling under low pressure

K005/4104 Rights Managed

Downloadable master

Duration: 00:01:00.04

Frame size: 1920x1080

Frame rate: 25

Audio: No

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

File size: 1.7G


Capture format: Sony FS700

Codec: Apple ProRes 422 (HQ)

Please contact Science Photo Library if you require the original, or other formats.


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