English Deutsch Français Italiano Español Português 繁體中文 Bahasa Indonesia Tiếng Việt ภาษาไทย
All categories

what happens to the arrangment of atoms when wood gets burned? thanks

2007-03-22 02:42:04 · 4 answers · asked by ♥ hey! 2 in Science & Mathematics Chemistry

4 answers

Wood consists or biological hydrocarbons (strings of hydrogen and carbon) plus water and ash (minerals). Burning wood is a combustion process in which water is driven off as vapor, hydrocarbons combine with oxygen to for carbon dioxide (CO2) and more water (H20). The residue is ash or minerals that don't combust. The complex cells of the wood are mainly converted into hot gas and water vapor which are molecules.

2007-03-22 03:10:04 · answer #1 · answered by Kes 7 · 0 0

When wood is burned, the orderly arrangement of atoms is converted into a more disorderly arrangement. The cellulose molecules (C6H10O5)n are an orderly (polymer) arrangement with a lot of chemical bond energy. As the molecules are burned, carbon combines with oxygen and forms carbon dioxide a molecule with much less energy in its bonds. The hydrogens are released as water. Both CO2 and H2O contain very stable bonds and are not capable of releasing more energy. Neither of them will burn. The carbon dioxide and water molecules that are formed are usually released to the atmosphere and are dispersed chaotically.

2007-03-22 02:57:54 · answer #2 · answered by docrider28 4 · 0 0

Lancenigo di Villorba (TV), Italy

Ancient Latin poetry reported "Brevissimus quisque dilucidissum est"....translated in "I will be brief, hence I will be clear".

Wood burning results a VERY COMPLICATED PHENOMENON, nonetheless it belongs to Chemical Reactions.
Atom's Arrangement undergoes modification in order to sink Chemical Reactants and form Chemical Products.

HISTORICAL NOTES
Starting from Atomic Theory of J. Dalton (the Beginnings of the XIX century), chemical stuffs are constituted by atoms playing a role to form the new products.
In the middle of XIX century, E. Frankland introduced the "Atomicity Power" (e.g. nowadays is known as Valence), so he assigned the Combining Power to the most common atoms.
At the ending of XIX century, several scientists collected many and many experimental determinations which agreeing NOT with too much simple Valence's assumption at the time.
In this period, the sir A. S. Couper began its own assumpts on the Structure of Molecules ; some decades later,
A. Kekulé overcame to the Molecular Structure's Theory starting from the Carbon Atom's Valence stated during the studies on the Hydrocarbons.

I hope this helps you.

2007-03-22 03:02:38 · answer #3 · answered by Zor Prime 7 · 0 1

Well, wood is basically cellulose...

ref: http://en.wikipedia.org/wiki/Cellulose

so when it get burned you have this reaction:

2(C6H10O5)n + 17nO2 --> 20nH2O + 12nCO2

2007-03-22 02:54:05 · answer #4 · answered by Dr Dave P 7 · 0 0

fedest.com, questions and answers