Course

Aim: To find out which fuel contains the most energy

Variables:
Control Variable: amount of water , changes in temperature
Independent Variable: Fuel
Dependent Variable: Mass of fuelEquipment:
-Diesel
-Kerosene
-Alcohol
-Petrol
-Matches
-Clamp Stand
-Copper Caloremeter
-Measuring Cylinder
Fuel | Initial Temperature (°C) | Final Temperature (°C) | Change in Temperature (°C) |Petrol | 23 | 48 | 25 |
Diesel | 23 | 48 | 25 |
Ethanol | 23 | 48 | 25 |
Kerosene | 23 | 48 | 25 |
-Thermometer
Results

Energy Transferred = Mass of water x SHC x AT

Energy givenout/gram = energy transferred/ mass of fuel burned

Fuel | Fuel before burning (g) | Fuel after burning (g) | Mass of fuel burned (g) |
Petrol | 165.33 | 164.75 | 0.58 |
Diesel | 150.10 | 149.68 |0.42 |
Ethanol | 157.76 | 156.17 | 1.59 |
Kerosene | 164.81 | 164.33 | 0.48 |

Fuel | Energy per gram (J/g) |
Petrol | 9051.7 |
Diesel | 12500 |
Ethanol | 3301.9 |
Kerosene | 10937.5 |Evaluating my experiment to have better and more accurate results I would try to measure the temperature more accurately by being in the same position every time I measured the temperature, besidesthat I would also try to leave to the thermometer without touching the calorimeter because that may affect the changes in temperature. If I had to do the experiment again I would also find out how pureare the fractional distillations of the fuels.

In conclusion I can say that the substances giving out more energy when being burned is kerosene because it was the fuel which burned a smalleramount of fuel but produced more heat. And the one which is less effective is ethanol because it had to burn a higher amount of fuel to increase 20 degrees.

Aim: To find out which fuel has a higherlevel of viscosity.

Equipment:
-Petrol
-Diesel
-Kerosene
-Ethanol
- 4 Burretes
- Stopwatch
-Beaker

Variables:
Control Variable: Fuel
Dependent Variable: Time Taken for all the fuel poured...