Reaction rate, 1 of 2. Charcoal consists of mostly carbon (C) and is typically obtained from wood by pyrolysis. A piece of charcoal briquette in a deflagration spool burns fairly slowly in the air (Photo 1). In this combustion reaction carbon dioxide is produced: C + O2 -> CO2. The rate of the reaction is limited by the concentration of oxygen (O2) in the air, about 20%. Burning charcoal is then put into a beaker with pure oxygen (Photo 2). The reaction rate increases dramatically and charcoal produces a much brighter glow and some sparks. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Turtle Rock Scientific |
Taille de l’image : | 5140 px × 3410 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |