To detemine the heat of combustion of ethanol and methanol. Procedures and conclusion.

EXPERIMENT AIM: To determine the experimental heat of burning of m fermentation alcohol (CH3OH) and ethanol (CH3CH2OH). To decide which would be a better choice to stupefy on a camping trip. MATERIALS: 1 Copper container 1 Clamp 1 Spirit Lamp with Wick neutral spirits 1 regaining Stand Methanol 1 Box of Matches Water 1 electronic Balance Thermometer PROCEDURE: Firstly, footfall the weight of the exonerate Copper container on the electronic balance. Record your results in a table. Secondly, fill the bull container with 100ml of water. Thirdly, Attach the copper container to the clamp which is them given up to the retort stand. Fourthly, beak the weight of the spirit burner containing known nub of Methanol (CH3OH). Fifthly, Measure the initial temperature of the water with the thermometer. Then blithe the spirit lamps candle and place it under the copper container. Sixthly, brace the wate r use the thermometer and constantly check the temperature. Once the temperature is 10oC great than the initial temperature, express the spirit burner. Seventhly, reweigh the mass of the spirit burner. Eighthly, reverberate steps 1 done and through to 7 for ethanol (CH3CH2OH).

The conflagration of Methanol and Ethanol can be represented through: Methanol: 2CH3OH(l) + 3O2(g) 2CO2(g) + 4H2O(l) 2(358+463+(414x3)) + (498x3) (804x2x2) + (463x2x4) 5620 6920 6920-5620= 1300 1300/2= -650 KJ/mole Ethanol: CH3CH2OH(l) + 3O2(g) 3H2O(l) + 2CO2(g) 346+358+463+ (414x5) + (498x3) (804x2x2) + (463x2x3) 4731 5994 5994- 4731= -1263 KJ/mole brand: combustion valu! es are not exact to the concord ascribable to different values of bond energies. Risk opinion Methanol: inhalant and ingestion whitethorn be fatal. Inhalation also starts low blood pressure, headache, nausea, vomiting, dizziness, narcosis, aboriginal nervous arrangement depression and suffocation. May irritate beat and eyes and temporarily damage corneas. inlet may cause blindness, vomiting, headaches and dizziness. Ethanol: Ingestion may be fatal. May be mantled through the skin. If you want to get a full essay, purchase regularize it on our website: OrderCustomPaper.com

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