An investigation into the heat of combustion of five alcohols

Alcohol: Investigation plan of combustion heat of five kinds of alcohol ======== Introduction ------------ I tried to find the heat of combustion of the first five kinds of alcohol, yes , Ethanol, propanol, butanol, pentanol and hexanol. I tried to determine if the number of carbon atoms in the molecule had an effect on the heat generated from the molecule during combustion. I think that the thermal energy given will increase as the molecular size increases and the carbon chain length increases.

Investigate the change in the enthalpy of combustion of alcohol homologs. When carbon alcohol is burned, we study how alcohol with increased amount of carbon affects metamorphism. The energy released by alcohol when it is used is called the enthalpy of combustion. By using what I already have, I think alcohol with a large number of carbon atoms in the molecule will have greater alcohol change than alcohol with fewer carbon atoms. Therefore, as the molecular weight increases, I predict that the enthalpy of combustion increases.

Testing We use a calorimetric method to investigate the relationship between structure and heat caused by a series of alcohol burning. To do this, burn alcohol and let it heat a large amount of water. To measure the temperature rise of this mass of water, you can use this formula to find the thermal energy released during the reaction. Musical instrument ==> 1 canister ==> 1 measuring cylinder ==> water ==> 1 thermometer ==> 1 station ==> 1 plier ==> 1 boss ==> 1 hot pad ==> 1 alcohol stove / Candle ==> 1 Balance ==> Windshield Figure 1: Experimental setting. Method

Combustion: a process of burning combustible materials in the presence of air or oxygen to release heat. This is the easiest way to use biomass for energy. In its basic form, combustion is used for heating (ie fire for heating), but it can also be used to heat steam for power generation. Pyrolysis: It consists of pyrolysis without oxygen. It is a precursor to gasification and occurs as part of gasification and combustion. The pyrolysis products include gas, liquid and coke sold, the proportion of which depends on process parameters.