第七单元燃料及其应用（Seventh unit fuel and its application）.doc

第七单元燃料及其应用（Seventh unit fuel and its application） DOC documents may experience poor browsing on the WAP side. It is recommended that you first select TXT, or download the source file to the local view. Seventh unit Fuel and its application The subject of the 1 combustion and extinguishing a burning, the oxygen the definition: usually refers to violent combustion oxidation of combustible with oxygen a light, red phosphorus release of phosphorus. Explore the combustion conditions (the experiment should be carried out in a hood or exhaust equipment under hot water): [] A. as the experimental operation (1), 400mL 500mL injected into the hot water in the beaker, and put a small piece of white phosphorus with cardboard circle live. In the beaker cover a piece of white phosphorus thin copper on copper and phosphorus, is a small pile of dry red, the other end is placed a small (1) (2) has been absorbed by the surface water phosphorus, observe the phenomenon. Such as the B. (2), with the alignment of the beaker catheter into a small amount of white phosphorus, oxygen (or air), to observe the phenomenon. [A.] on the experimental phenomena of copper copper on the burning white phosphorus, red phosphorus and white phosphorus in water without burning. B. burning white phosphorus in water. [experimental analysis] as shown on the right (1). Compared with that, it is indicated that the combustion of matter is related to the temperature needed for burning combustible materials. Compare with that, explain whether the combustion of the material is related to the contact with oxygen (air). Compare with the diagram (2), explain again: combustion must have oxygen (air). [Conclusion] the experimental conditions of combustion: fuel, and oxygen (or air), ignition point contact temperature reached there is an exhaust gas treatment device is not perfect, if the experiment can be improved, red phosphorus and white phosphorus in a closed container (also a balloon), this kind of easy to exhaust