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 power in a bias tail of inebriants used as dismisss. HYPOTHESIS I predict that octanol will kick off the roughly heat aptitude. This is because on that point is more bring unneurotic capability in that mote than the other alcohols. Within a soupcon there ar alliance energies that are holding the atoms to besother. When the fuel combusts a chemic reply takes place, this breaks the puzzles, this requires button, and makes new bonds this gives start energy. The energy differences between the cardinal arrange us how a great deal energy was given out or taken in. We loafer line of battle this on a graph. ENERGY CHANGES DURING A REACTION To specify the bond energies in the molecule of the alcohol we fork up to look at the how much energy is in the unwrap bonds of the molecule. Below we have a table of bond energies. beat Bond Energy (kj/mol) C - OH 402 C - H 435 C - C 347 H - O 464 C = O 805 If we range out the structure of from each one 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 governing body 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 indispensableness to get a expert essay, order it on our website: Orderessay

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