Credit: SCIENCE PHOTO LIBRARY MOTION

Caption: Endothermic reaction. High view down into a beaker containing a mixture of barium hydroxide and ammonium chloride, being stirred using the probe of a digital thermometer. The beaker is set on a block of wood dampened with water. As the chemicals are mixed, there is a dramatic drop in temperature down to around -20C. This freezes the water beneath the beaker so that the block of wood sticks to it.

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

Keywords: 9 seconds, aluminium chloride, barium hydroxide, beaker, celsius, chemical, chemicals, chemistry, cold, cooling, demonstration, digital thermometer, drop, dropping, dynamics, endothermic, experiment, fall, falling, freezing, heat, inorganic, loss, mix, mixing, mixture, rapid, reaction, thermodynamics, transfer

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Endothermic mixing reaction

K003/8994 Rights Managed

Downloadable master

Duration: 00:00:09.1

Frame size: 1920x1080

Frame rate: 25

Audio: No

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

File size: 357.6M

Original

Capture format: DSLR - AVCHD

Codec: H.264

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

 

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