RHYS LEWIS & MINH TAN PHAM, AHS, DECD, UNISA / SCIENCE PHOTO LIBRARY RHYS LEWIS & MINH TAN PHAM, AHS, DECD, UNISA / SCIENCE PHOTO LIBRARY
Composition of air. Burning red phosphorus is placed inside a bell jar which is then sealed. As it burns the red phosphorus uses up the oxygen in the jar to form solid white phosphorus pentoxide. This reduces the pressure of the air in the jar, causing atmospheric pressure to push water into it. This experiment demonstrates the proportion of air which is oxygen (approximately 21% by volume).
Model release not required. Property release not required.
Contact us if you require the original or other formats.