Bunsen burner flame

Bunsen burner flame

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Credit: DR RAY CLARK & MERVYN GOFF/SCIENCE PHOTO LIBRARY.

Caption: Thermograph of a bunsen burner flame, showing variation in temperature throughout. Colour coding (see bar at bottom) ranges from blue (coldest regions) through green & yellow to red (hottest region). The hottest parts of the flame are seen in centre (yellow), with flame temperature decreasing towards the edges. The cooler area in centre of base of flame represents unburnt gas passing through the burner's nozzle.

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Keywords: bunsen burner, chemical, chemistry, combustion, flame, thermogram, thermograph, thermography

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