A Modest Proposal for Methanol and Ethanol Powered Cars "We need more stringent regulations on car emissions... Let's add MTBE to the fuel- that will reduce pollution... If people would just stop driving so much, pollution wouldn't be so bad..." People have long recognized the problems with the gasoline we used now. We have tried everything from putting regulations on emissions, to putting additives in the gasoline (only to discover later that MTBE got into the groundwater), to campaigns to
Investigation to Find the Relative Energy Release of Five Alcohols: Ethanol, Methanol, Propanol, Butanol and Propanol Aim: In this experiment I will investigate to see which alcohol releases the most energy during combustion; Methanol, Ethanol, Propanol, Butanol or Pentanol. Hypothesis: I think that the alcohols with the longest carbon chains will release the most energy. This is because when a bond is broken energy is released. This means that the alcohols with longer chains and therefore more
effect the amount of energy given off. The types of alcohol used will be; Alcohol Formulae · Methanol CH3 OH · Ethanol C2 H5 OH · Propanol C3 H7 OH · Butanol C4 H9 OH I am going to investigate the amount of energy given out by the creating of bonds by subtracting the amount of energy needed to break the bonds to the amount given out from the creating of bonds. Methanol; C H3 OH + O2 ® CO2 + 2H2O H ½ H - C - O -H ½ H - C - H O - H O = C = O O = O
Chemistry coursework – Fuels Planning ======== Aim --- In this investigation I will have to find out which of the alcohol fuels: methanol, ethanol, propanol and butanol, is the best. The ‘best’ one will be the one which creates the most energy whilst burning. Introduction and prediction --------------------------- A fuel is a substance burned for heat or power. The best type of fuel is one that: can be transported safely without the worry of it catching on fire, gives out a
will heat up the water in the least weight loss will be Butanol. This should be followed by Propanol, then Ethanol and finally, the alcohol that will grace us with most weight loss will be Methanol. This is also backed up by the secondary data I obtained from the data book. That is as follows: Methanol -715 kJ per mole Ethanol -1371 kJ per mole Propanol -2010 kJ per mole Butanol -2673 kJ per mole Overall I will take three recordings for ethanol, and measure the weight before and
out which molecules transfer the most energy. PREDICTION: I predict that as the numbers of particles are increased, the energy transferred will also be increased. We will use methanol, ethanol, propanol, butonol and octanol. The word and symbol equations for these reactions are: Methanol: Methanol + oxygen carbon dioxide + water ======================================== C2H5OH + 3O2 2CO2 +4H20 Ethanol: Ethanol + oxygen carbon dioxide + water C2H5OH + 3O2 2CO2 + 3H20
retinal degeneration diseases. Thus, they hypothesis that the exposure of a rodent model of methanol toxicity to photobiomodulation (PBM) with near-infrared (NIR) could play a potential role in protecting the retina against the toxic actions of the methanol- derived formic acid. What is known about the topic is that if a small amount of methanol is injected it will rapidly cause permanent blindness. The methanol is metabolized to a mitochondrial toxin, and it is formic acid that can inhibit Cytochrome
into aspartic acid, phenylalanine and methanol. These components are also used in a selection of foods such as milk, meat, dried beans, fruits and vegetables, but much greater amounts are used in diet soda. Another reason Aspartame is terrible for you is that when Aspartame gets to a certain temperature it is known as rat poison. Also, 10% of aspartame is made up of methyl ester bond which includes methanol. After a few hours of ingesting aspartame, this methanol is released from the aspartame and
water. I will be burning five fuels which are called Methanol, Ethanol, Propanol, Butanol and Pentanol. In my investigation I predict that the alcohol Pentanol would release more energy than the other alcohols because as the chain length of the alkanes get longer, the more energy is released. Apparatus · Retort stand · Clamp · Measuring cylinder · Thermometer · Heatproof mats · Copper can · Splint · Chemicals(Methanol, Ethanol, Propanol, Butanol and Pentanol) Independent
many of the different number of bonds are broken and made and so work out the enthalpy change of combustion. We can work out the enthalpy of combustion of methanol by using the bond enthalpy values: CH3OH + 1.5O2 CO2 + 2H2O We can use the enthalpy cycle above to work out the value for the enthalpy change of combustion of methanol, represented by DH1. The calculation is done as shown below: DH2 = enthalpy change when bonds are broken = 3 ´ E(C-H) + 1 ´ E(C-O) + 1 ´ E(O-H) + 1.5
is affected by molecular structure of the alcohol. Outline: I will use Methanol, Ethanol, Propanol and Butanol in the experiment. I will use these four because they should give me clear results, and they range from short chained to long-chained hydrocarbons, so patterns should be easy to spot in the conclusion. Variables: My independent variables are - The type of alcohol (I will use ethanol, methanol, propanol and butanol) My dependant variables are - the specific heating
formula is CH3OH. This is the basic structure for all the alcohols, then to make the larger ones an extra carbon is added to the existing carbon each time and the oxygen-hydrogen molecule gets added to the atoms added to the new carbon atom When methanol combusts in air, it reacts with oxygen molecules to from water and carbon dioxide. The balanced equation fort this is: [IMAGE] CH3OH (l) + 1.5O2 (g) CO2 (g) + 2H2O (l) This means that the bonds broken are; 3 carbon- hydrogen, 1 carbon-oxygen
reaction. Boiling points will be increased because energy is needed bonds can be formed and broken. Breaking bonds need less energy than is needed to form bonds - exothermic reaction. Bigger molecules use high energy to be broken. Methanol and Ethanol have differences as Methanol melts at a higher temperature and boils at a lower temperature than Ethanol. Higher alcohols which include Butanol and Propanol have a higher molecular weight and this is why Butanol is used in perfumes. Ethanol, which is sugar
phenylalanine and methanol. Has been shown that aspartic acid causes brain lesions in animal experiments. The existing phenylalanine in aspartame is neurotoxic when isolated from other amino acids in proteins. Facilitates the occurrence of seizures and blocks the production of serotonin, which is one of the substances on the brain to regulate sleep. Low levels of serotonin, and insomnia, causing depression, anxiety, moodiness and even symptoms of paranoia. Finally, methanol poisonous wood alcohol
Comparing the Enthalpy Changes of Combustion of Different Alcohols Introduction In this investigation I will set out to find the differences in the enthalpies of combustion of 6 different alcohols. These are methanol, ethanol, butan-2-ol, propan-1-ol, propan-2-ol and 2Methylpropan-1-ol. I can then find the variation between straight chain and branched molecules and isomers. Planning -------- Method ------ Carrying Out The Experiment To carry out the experiment, I will fill
in Latin America and the Caribbean, and finally entered the United States in the early decades of this century. Marijuana can even be used as "Biomass" fuel, where the pulp (hurd) of the hemp plant can be burned as is or processed into charcoal, methanol, methane, or gasoline. This process is call... ... middle of paper ... ...ke of argument - that marijuana has no medical value whatsoever, despite the fact that it has a several thousand year history of medical use and that a prescription drug
Investigating Fuels Aim; To find out the heat of combustion in the five fuels; Methanol, Ethanol, Propanol, Butanol, Pentanol, All of these alcohols are apart of the Hydrocarbon chain. Apparatus; I will need the following to carry out my investigation for the Experiment; Top pan balance - To measure the weight of the fuel. Clamp Stand - To hold the boiling tube above the crucible. Boiling tube - To hold 30 cubic centimetres of water in. Heat proof mat -
How much energy is produced when burning five alcohols · Methanol · Ethanol, · Propanol, · Butanol · Pentanol. The aim is to find out how much energy is produced when burning these alcohols. The reaction that is involved in burning alcohols is exothermic because heat is given out. Form this reason the reactant energy is higher than that of the product. The energy is given out when forming the bonds between the new water and carbon dioxide molecules. The amount of energy produced by such exothermic
energy as heat and light. I am going to investigate how the energy output of an alcohol in combustion changes, with increased relative molecular mass, or RMM. RMM is the sum of the atomic masses of every atom in the molecule. Using the alcohols: Methanol, Ethanol, Propan-1-ol, Butan-1-ol and Pentan-1-ol, I will plan, and complete an experiment that tests the prediction below. ====================================================================== Prediction And Theory ===================== In the
Analysis and Results of Enthalpy Change ALCOHOL AVERAGE MASS BURNT (G) METHANOL 1.54 ETHANOL 1.02 PROPAN-1-OL 0.77 BUTAN-1-OL 0.69 PENTAN-1-OL 0.55 HEXAN-1-OL 0.52 Following the gathering of results, the enthalpy change of combustion of the alcohols was calculated using the equation from page 2: Energy Transferred = Mass of water x Temperature rise x specific heat capacity (4.17) Now to calculate the enthalpy change of combustion, the following