Investigating Which Alcohol is the Best Fuel AIM: I am carrying out an investigation to see which alcohol is the best fuel. I will do this by experimenting with different alcohols and setting them alight and measuring different factors. I will analyse all my results and try to discover patterns, which should help me to conclude which alcohol is the best fuel. PLAN ==== This is how my experiment will be set out: ========================================== Keeping this
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
Comparing the Enthalpy Changes of Combustion of Different Alcohols Aim: I will find the enthalpy change of combustion of a number of alcohols so that I can investigate how and why enthalpy change 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
Background Information: Alcohols are a family of organic compounds containing the hydroxyl (-OH) functional group. In this experiment the five different alcohols used will be: Methanol1 Ethanol1 Propan-1-ol1 Butan-1-ol1
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
The Enthalpy Change of Different Alcohols My aim is to compare the enthalpy change of combustion of different alcohols in relation to the structure of each molecule. The enthalpy change of combustion of a fuel is a measure of the energy transferred when one mole of the fuel burns completely. In a chemical reaction, bonds must either be made or broken, this involves an enthalpy change. The formation of bonds is exothermic, energy is lost to the surrounding; on the other hand, breaking bonds
Comparing The Enthalpy Change Of Combustion Of Different Alcohols The aim of my experiment is to investigate the enthalpy of combustion of a range of alcohols. The standard enthalpy of combustion is the enthalpy change that occurs when 1 mole of a fuel is burned completely in oxygen under standard conditions – 1 atmosphere pressure and 298K. All combustion reactions are exothermic which is why I am expecting all the values for the enthalpy change of combustion to always be negative. Prediction
combustion of different alcohols What are alcohols? ================== Alcohol is the common family name for the hydrocarbon group alkanols. At least one of the hydrogen groups is replaced by an OH group. They are all organic compounds. The general formulas for the alcohols are: CnH(2n+1)OH Where n represents a number. The first and simplest member of the alkanols family is methanol. Its molecular formula is CH3OH. You can now see that each member of the alcohol family has a different number
Compare the Energy Given Out When Alcohols Burn I am investigating how different types of alcohol's 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;
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
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
Which Fuel Releases the Most Energy Per Mole Measure by Heating Water Hypothesis In this investigation I will burn alcohols to heat up a beaker of 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 ·
Enthalpy Changes of Combustion of Different Alcohols Aim: The aim of this experiment is to find out how the enthalpy change (total energy released when the alcohols are completely combusted in a plentiful supply of air) for 5 different alcohols is affected by the number of carbon atoms in the alcohol and other factors contributing to the molecular structure. Prediction: I predict that as the amount of carbon atoms in the alcohol increases, the higher the enthalpy of combustion will
carbon atoms in a fuel with the amount of energy it releases Alcohols generally belong to compounds whose molecules are based on chains of carbon atoms. They usually contain one oxygen atom, which is joined to a carbon atom by a singular bond. This makes them different to other compounds. The oxygen atom is joined to the hydrogen atom as well as the carbon atom, which makes the oxygen a part of a hydroxyl group. These atoms are generally a part of a hydrocarbon chain. These alcohols can take away water
Drinking can fuel fun activities, bring creativity to the table, and allow a chance to relieve the stress of classes. Depending on how much alcohol is consumed, and in what time period it is being consumed, drinking can cause the following problems: slurred speech, drowsiness, vomiting, upset stomach, headaches, breathing difficulties, distorted vision, impaired judgment, and even blackouts. College students generally associate parties with drinking. They assume that if you are at a party, alcohol will be
Have you ever heard of alcohol poisoning or have had a loved one, friend that had alcohol poisoning? Well if you haven’t then you’re about to learn all about alcohol poisoning. Well first of all let me tell you the definition of alcohol poisoning. Alcohol poisoning is a condition in which a toxic amount of alcohol has been consumed, usually in a short period of time. Basically have you ever been at a party and everybody drinking and there is this one person that won’t quit drinking and drinks 50
Methyl tertiary butyl ether18 (MTBE), (CH3)3COCH3 E. EXPERIMENTAL WORK The following table shows the range of petrol-ethanol mixtures used in this experiment. Table 1: Petrol 98 and Ethanol fuel mixtures Sample Fuel Name % composition of Petrol and Ethanol in the mixture 1 E0 100% petrol 2 E5 95% petrol and 5% ethanol 3 E10 90% petrol and 10% ethanol 4 E15 85% petrol and 15% ethanol 5 E20 80% petrol and 20% ethanol 6 E70 30% petrol and 70% ethanol 7 E75 25% petrol and 75% ethanol 8 E80 20% petrol
An investigation to determine which of four alcohols is the most exothermic Prediction I predict that the most heat given out per mole burned would be by Propanol because the size of the alcohol molecules might increase with heat. Alcohols produce heat when they burn in oxygen or air. The amount of heat produced per mole of alcohol will be proportional to the amount of air present. Full combustion should generate two products only: carbon dioxide and water vapour. Hypothesis Within a molecule
How does the Relative Molecular Mass change in heat combustion of an alcohol? Planning Introduction ============ As alcohol burns in air it gives out 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
foods and beverages as well as it being a process being used in several industries to make useful different products. Fermentation, as stated by author Anne M. Helmenstine is “the biochemical conversion of sugars, starches, or carbohydrates, into alcohol and organic acids, by bacteria and enzymes” (“What is Fermentation?”). In short, it is a change from something such as a sugar like glucose turning into a simpler compound. Fermentation traces its history to back to the Neolithic period, an era in