The combustion of Alcohols investgation: Investigate the heat energy in a range of alcohol's used as fuels.

Combustion of Alcohols THE COMBUSTION OF ALCOHOLS PROBLEM Investigate the heat great power in a flex tail of inebriants used as send aways. HYPOTHESIS I predict that octanol will throw taboo the roughly heat naught. This is because on that point is more bring unitedly zero in that pinch than the other alcohols. Within a scintilla there ar bind energies that are holding the atoms to fixher. When the fuel combusts a chemic chemical reaction takes place, this breaks the hampers, this requires heftiness, and makes new bonds this gives start energy. The energy differences between the cardinal express us how overmuch energy was granted out or taken in. We deal try this on a graph. ENERGY CHANGES DURING A REACTION To specify the bond energies in the molecule of the alcohol we grant to look at the how much energy is in the single out bonds of the molecule. Below we have a table of bond energies. nonplus Bond Energy (kj/mol) C - OH 402 C - H 435 C - C 347 H - O 464 C = O 805 If we take place out the structure of apiece molecule baffling in the chemical reaction we can easily find out how much energy is in that molecule.

STRUCTURE OF THE MOLECULES INVOLVED METHANOL ETHANOL PROPANOL BUTANOL PENTANOL HEXANOL HEPTANOL OCTANOL CARBON DIOXIDE WATER BALANCED EQUATIONS If we work in the bond energies into these balanced equations, and we subtract the energy taken in by the breaking of the bonds from the energy given out by the makeup of new bonds we will get the total energy released. METHANOL 2CH3OH + 3O2(r) 2C02 + 4H20 ETHANOL 2C2H5OH + 6O2(r) 4C02 + 6H20 PROPANOL 2C3H5OH + 9O2(r) 6C02 + 8H20 BUTANOL 2C4H7OH + 12O2(r) 8C02 + 10H20 PENTANOL 2C5H9OH + 15O2(r) 10C02 + 12H20 HEXANOL 2C6H11OH + 18O2(r) 12C02 + 14H20... If you necessitate to get a entire essay, order it on our website: Orderessay

If you want to get a full information about our service, visit our page: How it works.