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

Investigation into the production and conversion of energy.

Extracts from this document...

Introduction

Investigation into the production and conversion of energy

Aim:

Investigate a range of fuels and find out how much energy each one releases when it burns? I will use spirit burners with the compounds Methanol, Ethanol, Propanol and Butanol to heat water to find out how much energy was released.

Research:

The fuels I will burn are all hydrocarbons. When the fuels I chose burn, oxygen will be added to the substance. Below is one of the reactions I hope to create:

image00.png

This reaction will also release heat as a form of energy. In my experiment I hope to achieve complete combustion with a blue flame. If the combustion is incomplete not enough oxygen will be getting to the hydrocarbon fuel and it won’t be burning fully and therefore it will produce a smoky yellow flame. The reaction would then also produce carbon and carbon monoxide as seen below.

image01.png

The fuels are alkanes, which have single covalent bonds. You can see below the hydrocarbons name, and structural formula.

image02.pngimage03.png

Methane, CH4Ethane, C2H6

image04.pngimage05.png

Propane, C3H8                                           Butane, C4H10

...read more.

Middle

Ethanol        =         30gPropanol        =         44gButanol        =         58g

Hydrocarbons are very useful but as the chains get longer it becomes thick and loses its usefulness. Hydrocarbons are useful for many reasons but the main one is that it produces a lot of energy. I will burn the hydrocarbons in the experiment, which will produce a lot of energy given off as heat.

Prediction:

I predict that the heavier/longer chain hydrocarbon e.g. Butanol will be produce more energy per mole than the smaller chains such as Methane. As the mass of the molecule gets heavier the energy it produces will be more. I believe this because the heavier the molecule the more atoms it has to release more energy. The longer the chain of the hydrocarbon the more atoms they’re to produce more energy.

Fair Test:

To assure this is a fair test we must measure exactly 100cm³ of water every time. I must also record the weight of the spirit burner as soon as the water reaches the desired temperature. I must not leave it burning. To assure correct reliable results I will carry out the experiment 3 times with the fuels. I will also keep the wick length constant at 1cm. The can will be held 10cm above the wick each time.

Equipment I will need:

Spirit Burners

Spirits/Hydrocarbons (methanol, ethanol, Propanol and Butanol)

Clamp Stand

Tin can

Measuring Cylinder

Timer stop clock

Thermometer

Scales

Plan:

  • Before the experiment begins I will have to have all the listed equipment above
  • Using the scales I will weigh the spirit burners before and after each experiment and the amount of weight lost whilst it was burning.
  • Measure 100cm³ of water and pour it into the tin can.
  • Insert the thermometer into the can and note the starting temperature.
  • Secure the can with the clamp in mid air and place the spirit burner underneath recording which spirit used.
  • Then start the clock and time how long it takes to reach 50°C
  • After the experiment weight the spirit burner. Then cool down the can and restart the experiment.  
...read more.

Conclusion

temperatures to get accurate results. This would allow me to see further what happens when you increase the amount of particles in a molecule and the affect it has on the amount of energy released. I might also try how long it takes the fuel to heat different amounts of water or even a totally different compound.    

...read more.

This student written piece of work is one of many that can be found in our GCSE Electricity and Magnetism 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 Electricity and Magnetism essays

  1. Marked by a teacher

    Investigation into Energy Released From Burning Various Alcohols.

    4 star(s)

    Mass of Water (g) Start Temperature of Water (�C) End Temperature of Water (�C) 165.67 164.78 20 24 81 Pentan-1-ol 164.78 164.12 40 23 70 164.12 163.44 80 23 45 Methanol 190.97 188.46 80 22 51 Propan-2-ol 153.18 151.82 80 22 49 I started with a mass of water of 20g, and burned Pentan-1ol.

  2. To investigate which fuel gives out the most energy when burnt. We are burning ...

    I will then light the burner and wait for a temperature rise on 10�C. I will then weigh the spirit burner after the experiment and record the temperature after the burner is lit. Apparatus: * Ethanol * Spirit Burner * Measuring Cylinder * 100ml of water (Tap Water)

  1. "My aim is to find out how much energy is released when burning different ...

    I predict that the crisp with the higher fat content will produce the most amount of energy when burnt. I predict that Walkers will produce the most amount of energy because there crisps have the highest fat content at 34g/100g.

  2. Investigation to see the relationship between actual and theoretical energy released when burning different ...

    fair the only variable I will change will be type of alcohol. This is the independent variable. The variable I will measure is the change in mass of the alcohol. I will do this by weighing the spirit burner containing the alcohol before and after the experiment, and calculate the difference by subtracting the mass after from the mass before.

  1. Investigation to see how the heat energy produced by ethanol compares with the heat ...

    Work I have decided to do preliminary work so that I can familiarize myself with the type of trend that I should be looking for when the ethanol and propanol is heated. I achieved this by working out the Nett Energy, which involved using bond energies worked out by scientists who will have used the exact equipment and conditions.

  2. Investigating The Heat Of Combustion Of Alcohols.

    Now to see how much energy is produced we work out the total amount of energy produced by the bonds that are made. Once we have this total we take away the total amount of energy used to break the old bonds and that is the amount of energy released.

  1. Resistance of Carbon Putty.

    For instance when we doubled the length from 2 cm to 4cm the resistance went from 2.8 to 4.33 ohms a difference of 1.5 ohms which is almost half of 2.8 ohms. From 4 to 6 cm the difference was 1.46 ohms which is more than half of 4.33 therefore the pattern is beginning to break down.

  2. Investigating the heat energy given out by a mole of an alcohol when burning ...

    alcohol is lit in air, the heat energy from the surroundings is used to break the bonds of the alcohol and around the alcohol, those of the oxygen molecules. So the first part of the reaction is done in an endothermic fashion.

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