Chemistry - Coursework
Aim
The aim is to investigate if there is a link between the number of carbon atoms in a fuel and the amount of heat produced by that fuel.
Prediction
I predict that the more carbon atoms that are in a fuel, the more heat the fuel will generate.
Risk Assessment
There are some safety precautions that will have to be taken when the experiment is carried out. These will be determined by the hazards that are in the room and hazards that could occur.
These are:
- Heatproof mat
- Goggles
- Tie tucked in shirt
- Hair clipped back
- The alcohol’s are flammable so care must be taken with them
- Equipment might get hot
- There will be naked flames
Equipment used and reasons
³ Calorimeter - this is used to hold water. This is used because it is non flammable so even when in close contacts with the fuels, it will not burn.
This is a preview of the whole essay
Peer Reviews
Here's what a star student thought of this essay
Quality of writing
Text very pale and hard to read in the current format. The method should be outlined in bullet point format to make it easier to follow. Grammar, spelling and punctuation fine.
Level of analysis
The introduction is adequate as it sums up the aim of the experiment in a concise way. The prediction is good, but the candidate should back this up with some form of scientific evidence and consideration. The risk assessment is outlined okay, but the reasons for doing each safety measure should be explained so the other readers know exactly why certain things they do can be hazardous. The equipment and reasons are outlined well. Why certain factors are controlled should be explained. The diagram of the experiment is good but it should really have distinct labels so we know exactly how the items should look. The preliminary work doesn't really say what they did learn and how they applied it to the experiment which needed to be mentioned. Table of results far too bright in colours to read. The conclusion is adequate, but it doesn't really suggest any improvements and errors that may have occurred and the improvement suggested is not explained at all, this should be done to show better understanding of how the experiment went.
Response to question
The response to the question was done well overall. The candidate outlined the process of the experiment well and the format of the essay was well done apart from the font and bright colours used. The essay lacked scientific depth behind the reasoning which is what lets this essay down.
