Credit: RHYS LEWIS & MINH TAN PHAM, AHS, DECD, UNISA/SCIENCE PHOTO LIBRARY

Caption: Test for hydrogen gas. The gas is produced from a reaction between a metal and an acid, in the test tube. When a lit splint is placed in the path of the gas, the flame provides the activation energy necessary to allow molecules of oxygen (from the air) and hydrogen to react, forming water molecules which condense on the mouth of the test tube. Sound energy is also released as this reaction occurs, producing a classic squeaky pop .

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

Keywords: black background, burning, chemical, chemistry, demonstrating, demonstration, education, educational, element, experiment, fire, flame, gas, glassware, hydrogen, lighting, lit, oxygen, reacting, reaction, school, science, scientific, sound, splint, squeaky pop, test tube, water

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Hydrogen test

K004/0905 Rights Managed

Downloadable master

Duration: 00:00:34.1

Frame size: 1920x1080

Frame rate: 25

Audio: No

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

File size: 1.1G

Original

Capture format: Sony FS700

Codec: H.264

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

 

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