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Properties of Hydrocarbons - To find out how the flammability and thickness of oil products changes with boiling point.

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Introduction

Properties of Hydrocarbons Aim - To find out how the flammability and thickness of oil products changes with boiling point. * Equipment/ The equipment utilised in this experiemnt will be: 1. A heat proof mat to place on the surface to stop any spillage. 2. Some books will be required, just one or two would be necessary to prop up the slide to create a slope. 3. A slide for the oil to slide down, simply once a drop is placed at the top it will slide downward and be timed in it's speed. 4. Lastly a stopwatch to time the experiment. * Method/ This experiment will be conducted fairly simply; firstly, we must place the heat proof mat on the surface in use, then stack one or two fairly thick textbooks for a good height to be used as aslope. ...read more.

Middle

I have to make sure in each of the 5 tests that I release exactly one droplet of oil in each case, as the more I let out the faster it will flow, so I must keep it even in all cases. Timing must be dead accurate in each test to make sure I get the correct timings, as there may be some measurements a lot closer than others and they need to be intricately timed. The slope must be angled the same each time as well, as the steeper the slope the faster it would slide down, so it must remain even to get a fair, realistic comparison * Prediction/ I predict that as the oils get thinner they will slide down the slide much faster that the thicker oils. ...read more.

Conclusion

This is due to the molecules struggling to separate from each other as they have stronger molecular bonds, this proves my prediction right. The molecules find it easier to untangle and go down the slide when they are thinner, thus proving a faster result. The difference is subtle in the means of secs taken until the last 2 oils, liquid [araffin and Lubricating oil take considerably longer as they are the 2 thickest by far. The boiling points rise as the oils get thicker, the thicker the oil, the prime example being the thickest, lubricating oil, this also has the highest boiling point. Flammability increases as the oils get thinner, we conducted a test to see how flammable each oil was, placing a half dozen drops in a dish and lighting them with a splint to see how fast and in what way the oil lights. Sulmaan Butt - 11 Sc5 ...read more.

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