• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Which Alcohol is the Best Fuel?

Extracts from this document...


Investigation - Which Alcohol is the Best Fuel? In my investigation, I will be trying to decide which alcohol is best to use as a fuel from a selection of five different choices. These are: - Methanol - Ethanol - Propanol - Butanol - Pentanol And to do so I will be using the following apparatus: Spirit burner with the respective fuel - Clamp - Tin can - 100cm3 of water - Thermometer - Polystyrene insulating lids - Stopwatch - Scales - Source of ignition such as matches I will be sure to use goggles in my investigation as a safety precaution. My method is as follows. Firstly, I will weigh and record the mass of each of the fuels named above. Then, I shall fill up the tin can with 100 cm3 of water, and place it in the clamp, directly above the fuel. I will also need to measure the temperature of the water. Next I will put the polystyrene insulating lid on the tin can, with a thermometer sticking through the middle. ...read more.


Essentially (m x c) was always equal to 418. However the change in temperature was always different. It was calculated by simply taking away the initial temperature from the end temperature. For example: Butanol: Q = (100 x 4.18) x (48 - 24) Q = 418 x 24 Q = 10032 To make it easier, I will measure the energy in kJ (kilo joules). So Butanol produced 10.032 kJ of energy. After having calculated all the results, I added the value of Q per each fuel to the table like so: Alcohol Initial Mass (g) Initial Temp �C ? Mass (g) End Temp �C Value of "Q" (kJ) Butanol 227.1 24 1.3 48 10.032 Methanol 205.8 24 3.2 45 8.778 Pentanol 219.7 24 1.2 53 12.122 Propanol 225 24 1.3 58 14.212 Ethanol 184.7 24 1.6 47 9.614 So from this table I can see that the best fuel from this selection based on a time span of 2 minutes is Propanol, as it produced 14.212 kJ. ...read more.


Now what we have from the table is the most time efficient and weight efficient fuels. Amazingly, Propanol is the most time and weight efficient fuel. In fact, none of the fuels changed position in how efficient they were. For both criteria, the fuels were ordered as follows: Best: Propanol Pentanol Butanol Methanol Worst: Ethanol Yet, is this all I can find out about the fuels? To be honest, the answer is no. I would have liked to measure the amounts of carbon dioxide emitted by each fuel, and judged which was best for the environment per gram of fuel used. Moreover, it would have been good to also compare each fuel to its price, and to see which fuel was most cost effective. In terms of the practical part of the investigation, I am confident that the experiment was carried out fairly and properly, as my results seems to be solid. However, there is always room for improvement, and I think that if I used more accurate equipment, and repeated the experiment more times, my results could have been marginally more accurate. ?? ?? ?? ?? Bruno Crosier 11A. 1 of 5 ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our GCSE Organic Chemistry section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related GCSE Organic Chemistry essays

  1. Titration experiment - write up

    For example, during my second titration I added three big drops, this would have caused the solution to neutralise faster, hence, giving me a lower titre reading, and this error could have caused the anomaly in my experiment. Furthermore analytical skills play a key role.

  2. An investigation to find out which alcohol is the best fuel

    8.5 8.5 8.5 Size of Flame (cm) 3 3 3 Mass of burner before (g) 142.25 144.33 146.26 Mass of burner after (g) 140.05 142.27 144.33 Initial temperature ('C) 20 20 20 Final temperature ('C) 80 80 80 Time took to rise 60'C 2:16 2:10 2:07 Ethanol 1st time 2nd time 3rd time Mass of copper beaker (g)

  1. Which Alcohol is the best fuel?

    2 minutes 200 ml 6 cm 19? 38? 19? 2 minutes 150 ml 5 cm 18? 40? 22? 2.5 minutes 150 ml 4 cm 21? 43? 22? 3 minutes 150 ml 4 cm 20? 47? 27? This tested a random alcohol From these results I have decided to use 150ml of water and time for two minutes per experiment

  2. The aim of this investigation is to compare the enthalpy of the following different ...

    = 4 x 803 = 3212 4(O - H) = 8 x 464 = 3712 Total: 3099 KJ Total: 6924 KJ Two moles of methanol releases: ?H = Bond Broken - Bond Formed = 3099 - 6924 = - 3825 KJ One mole releases: - 3825 2 = - 1912.5 KJ/mol Predicted values for Pentanol 2C5H11OH + 15O2 10CO2 + 12H2O Pentanol + Oxygen Carbon Dioxide + Water (l)

  1. Investigate the enthalpy change of different alcohol

    Carbon is actually attached to oxygen in OH group, while hydrogen is attached to oxygen. OH has a valency of 1 and carbon has a valency of 4, therefore each contributes an electron and forms a covalent bond in between. Butan-1-ol and propan-1-ol both have their functional group (OH-hydroxyl group)

  2. Why i think Methanol would be the best fuel for the future.

    But the fuel which as the greatest support from the automotive industrie is methanol. The advantage with Methanol is that it can be reformed onboard the vehicle at much lower temperature than synthetics or gasoline, making it easier to reform into Hydrogen gas which is what makes the fuel cell work.

  1. To find out which of these four alcohols: ethanol butanol propanol pentanol is the ...

    would be suitable for the experiment, also which apparatus I have chosen to use. So in order to do this I did a preliminary experiment and I decided to keep the temperature of the water at the start of the experiment 20�C for each alcohol and to heat it until it reaches 100�C.

  2. GCSE Chemistry Revision Notes - everything!

    ions Fe3+ (aq) + 3OH- (aq) ? Fe(OH)3 (s) A green precipitate shows the presence of iron (II) ions. Fe2+ (aq) + 2OH- (aq) ? Fe(OH)2 (s) However, iron (II) hydroxide darkens on standing and turns orange around the tope of the tube. This is because the iron (II)

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work