LEAD(ii) BROMIDE :D
wood
Burning wood does not involve sublimation. Sublimation changes a solid to a gas without altering it chemically. Wood burning does involve destructive distillation. The wood is chemically destroyed, and parts of it go off as gasses, which then combust.
snow can affect wood because snow turns into water and when water gets on wood it warp.
Like all burning reactions (with oxygen that is) burning wood is also exothermic.
Wood undergoes pyrolysis as it burns. Pyrolysis is the destructive distillation of the wood, producing gasses, which burn as they leave the wood, and carbon, which will also eventually burn. This is how wood normally burns.There is a link to an article on pyrolysis below.
Yes, by dry heating without acces to air. One of the products -besides of charcoal- is ' spirit of wood' which is methanol, CH3OH. (toxic, blindness)
Burning wood does not involve sublimation. Sublimation changes a solid to a gas without altering it chemically. Wood burning does involve destructive distillation. The wood is chemically destroyed, and parts of it go off as gasses, which then combust.
No. Sublimation is a physical phase change in which a solid vaporizes without going through a liquid change. Sublimation does not involve a chemical change. Iodine sublimes, passing directly from solid to gas. Clearly, this is not what happens when wood burns. When wood burns, the first thing that happens is that the wood undergoes pyrolysis, which is decomposition resulting from heat, or destructive distillation. The wood decomposes into a number of gasses, including carbon monoxide, methanol, and a large number of other carbon based chemicals. These combine with air and oxidize, producing mostly carbon dioxide and water. After the initial pyrolysis, charcoal remains. This burns with air, producing carbon dioxide and ash. There are links below to articles on sublimation and pyrolysis.
Sublimation
snow can affect wood because snow turns into water and when water gets on wood it warp.
elemi
No. It is a chemical change.
Stanton Wood has written: 'The snow queen'
Like all burning reactions (with oxygen that is) burning wood is also exothermic.
Wood undergoes pyrolysis as it burns. Pyrolysis is the destructive distillation of the wood, producing gasses, which burn as they leave the wood, and carbon, which will also eventually burn. This is how wood normally burns.There is a link to an article on pyrolysis below.
Yes, by dry heating without acces to air. One of the products -besides of charcoal- is ' spirit of wood' which is methanol, CH3OH. (toxic, blindness)
they got found in a wood banch in America
Rain because rain is wet ans soaks the wood while snow being frozen is dry and does not wet the wood until after the fire is lit and it melts.