• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month
Page
  1. 1
    1
  2. 2
    2
  3. 3
    3
  4. 4
    4
  5. 5
    5
  6. 6
    6
  7. 7
    7
  8. 8
    8
  9. 9
    9
  10. 10
    10

Investigate which fuels contain the most energy between; firelighter, wood, ethanol, paraffin and wax.

Extracts from this document...

Introduction

Contents 1. Aim 2. Prediction 3. Apparatus 4. Method 5. Results - Preliminary test 6. Conclusion 7. Results for Ethanol and Firelighter 8. Conclusion 9. Evaluation 10. Sources Aim: I am going to investigate which fuels contain the most energy between; firelighter, wood, ethanol, paraffin and wax. Prediction: I think that the fuel that contains the most energy is the one that produces the highest rise in temperature of the water. I know this because... Heat + fuel + oxygen => CO2 + H20 + energy. And because of the fire triangle: Apparatus: List: Stop watch Thermometer Splint Clamp Matches Boiling tube Heat proof mat Fuels: Firelighter, Wood, Ethanol, Paraffin, Wax. Method (Preliminary test): first of all, I will make sure I take all of the safety precautions, I.e. tie back long hair, use goggles and make sure the room is well ventilated. Secondly I will set out the apparatus and get all the equipment from the list (shown on the previous page). Using the measuring cylinder, I will put 20cm3 of distilled water into a boiling tube, and take the starting temperature. In order to make this a fair test I will burn the fuel for one minute only, use 20cm3 of water and make sure the tip of the fuel's flame is under the boiling tube. ...read more.

Middle

I have tested those two against each other three times, found the average of each time and have come up with the following results. Results for ethanol and firelighter: Table of results for ethanol: TEMP (�C) TIME IN SECONDS First time Second time Third time Average time 30 25 23 14 21 40 64 63 56 61 50 83 102 86 90 60 154 129 108 130 70 184 157 131 157 80 226 183 161 123 90 275 211 179 222 100 395 229 203 276 Table of results for fire lighter: TEMP (�C) TIME IN SECONDS First time Second time Third time Average time 30 23 26 18 22 40 131 106 59 99 50 202 202 116 173 60 215 301 130 215 70 238 337 141 239 80 306 409 150 288 90 356 430 157 314 100 446 455 209 370 Conclusion: To conclude; I think that ignoring the result taken under 80�C, ethanol is more of a steady line of best fit, but did not double with a set amount of time therefore also did not increase 10�C every 10 seconds so it was not directly proportional. whereas firelighter has more of a curve of best fit, which after reaching 70�C increases to a steeper line of best fit. ...read more.

Conclusion

transferred to the water. I got this equation, from information in a science book saying it requires 4200J to heat up 1 kg of water by 1�C so then to change that to ml as my investigation was in ml I know that 1 kg = 1L of water which =1000 ml, so then 4200/1000 = 4.2, Then x 20, as that's how many millilitres I used for my experiment, which = 84 then to get the (J) I do 84 x the amount of degrees the water had risen to = the amount of energy transferred to it in (J)! Another way to improve the accuracy of the experiment would be to improve the fact that unspecified amounts of fuel where used, as we did not weigh the fuel therefore it was not a completely fair experiment. For instance it can be safely assumed that if we used twice as much ethanol, we would get a flame twice as big. So the water would reach 100�C much quicker and probably in half the time. Although you will need to do a separate experiment to prove this assumption. If this experiment is repeated, I recommend that the same amount of each fuel is used and the experiment continues until all the fuel runs out. To make the experiment even more fair all the fuels should be at the same temperature at the start. Sources: Letts, GCSE Science. ...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. Peer reviewed

    Burning Fuels Coursework

    4 star(s)

    This was put down to the Bunsen burner; the amount of gas that it used was not constant, and as such it could not be relied upon to produce suitable results.

  2. Energy Transfer in Fuels

    Also by recording the results in a table, it would be easier to read off the results and produce a graph in the analysing part of the coursework. I think my plan will be a safe one as we are using the necessary equipment to make it safe, for instance we are using a burn proof mat and safety goggles.

  1. This is a mini-project on fuel - topics include petrol and fossil fuels.

    It led to the development of industry and transport. People left the land to work in the new factories which contained steam powered machines, and steam railways allowed people to travel further and faster than ever before. Some things you may find in a steam engine: * Boiler burns wood or coal, producing heat.

  2. The Energy Content Of Different Fuels

    + (1 x 463) + (3 x 498) = 2065 + 347 + 360 + 463 + 1494 = 4729 kjmol-1 On the right-hand side of the equation: 2 x ?2 x C=O (-743 kjmol-1) 3 x ?2 x O?H (-463 kjmol-1) Total energy produced by making the bonds = (4 x -743)

  1. Investigating energy when fuels burn.

    Preliminary Results Alcohol How long burned for (minutes) Methanol 4:30 Ethanol 6:47 Propanol 5:41 Butanol 7:02 From looking at the table we can see that all the alcohols burn for 4:30 minutes or more, this means I shall therefore allow the alcohols to burn for fours minutes each in the experiment.

  2. Investigating the Efficiency of Fuels.

    I have decided to use Perspex lab shield in order to stop draughts from disturbing the flame. I also noticed that the hexane and pentane bottles are not all the same height. I will have to measure 1cm from the base of the flame to the base of the copper tin.

  1. Hydrocarbons As Fuels.

    Different crude oils Percentage composition Type of crude oil Petrol Kerosene Gas oil Fuel oil North sea oil 23 15 24 38 Arabian light 18 11.5 18 52.5 Arabian heavy 21 15 21 43 Iranian heavy 21 13 20 46 This fingerprint makes it possible to identify the source of

  2. GCSE Chemistry Revision Notes - everything!

    Rates of reaction Chemical reactions occur at different rates. Some are very fast like that between hydrogen and air (where a squeaky pop is heard), while others take hundreds of years before an effect can be seen, for example, the reaction between a limestone building and acid gases in the air.

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