To observe temperature change in Ethanol and Methanol

Fair Test:

To make this investigation a fair test, you're going to have to make sure you have all the equipment and that they are up to date, especially the jug. Put the same amount of into each jug; make sure the room temperature for both thermometers are the same before burning the fuels.

Measure the flame and make sure that they are the same size.

Check the temperature at the same time after every 1-minute for 10- minutes. Repeat this twice to get the average temperature.

You might need someone else to help you and don't forget to do this fair test for both Ethanol and methanol.

Safety:

The safety for this experiment is to tie hair back in case of it catching the flame, clear the table so that only the equipment that you are using is in sight, to wear goggles at all times, do NOT put the thermometer or any part of your body anywhere near the flame.

Equipment:

Heat- prove mat, beehive stand, stripod, beaker, goggles, ethanol, methanol, timer, guaze.

Method:

.Measure out 50ml of water in a beaker.

2.Place on tripod stand over the fuel M/Ethanol.

3.Light the fuel and record the temperature rise for every minute for 10

minutes and record results on a table.

4.Repeat the above twice more.

5.Repeat the above for the fuel Ethanol.

Observing

Collecting the data:

I collected the data by applying to the method with both Ethanol and Methanol. Then I added up all the 3 results and divided it by 3 because there were 3 results. The answers to the division sums are then the average temperature for each minute of the investigation.

Nasra Salah 10C

Safety:

I have had to wear goggles at all times, keep my bag and other equipments out of the way so that it doesn't catch the flame of the M/ethanol.

Analysis

Graphs:

See the next two pages for the table of results and the graph.

Explanation:

In this investigation, I have found out that ethanol burns faster than methanol.

To prove my point, I have seen in the graph that at the beginning Ethanol took longer to burn but after the first 3 minutes it started catching up and the temperature had raised very quickly leaving the Methanol temperature behind.

For example, at the time of 8 minutes, Ethanol had the temperature of 81ºC while Methanol was still at 76ºC.

Also at the end, the temperature of Ethanol was at 85ºC and methanol quite close at 83ºC.

Evaluation

Criticising:

I did a few things wrong, but I don't think that it interfered with my investigation. The only thing that I have done wrong was that there was other people's bags near my experiment so I didn't really follow the safety rules that much.

Improvements:

Next time, I will try and stick to the safety rules and start my investigation earlier so that I won't run out of time.

Nasra Salah 10C

Room temperature is 22ºC

Time

2

3

Average

(min)

Temperature

1

34ºC

33ºC

33ºC

33ºC

2

43ºC

44ºC

42ºC

43ºC

3

46ºC

55ºC

50ºC

50ºC

4

56ºC

64ºC

59ºC

60ºC

5

63ºC

72ºC

67ºC

67ºC

6

70ºC

79ºC

73ºC

74ºC

7

76ºC

83ºC

77ºC

79ºC

8

79ºC

85ºC

79ºC

81ºC

9

82ºC

87ºC

82ºC

84ºC

0

84ºC

87ºC

85ºC

85ºC

Time

2

3

Average

(min)

Temperature

1

33ºC

38ºC

31ºC

34ºC

2

41ºC

51ºC

37ºC

43ºC

3

53ºC

61ºC

39ºC

51ºC

4

61ºC

70ºC

42ºC

58ºC

5

68ºC

76ºC

50ºC

65ºC

6

73ºC

81ºC

57ºC

70ºC

7

77ºC

84ºC

61ºC

74ºC

8

79ºC

85ºC

65ºC

76ºC

9

82ºC

86ºC

72ºC

80ºC

0

85ºC

86ºC

77ºC

83ºC

Nasra Salah 10C

00

90

80

70

60

50

40

30

20

0

2

3

4

5

6

7

8

9

0

1