Rate of reaction = change in absorbency/change in time
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Skill B- Implementing Table of Results: Temp 20oC Temp 30oC Temp 40oC Test=> 1 2 3 ave Test=> 1 2 3 ave Test=> 1 2 3 Ave Time sec Time sec Time sec 60 0.15 0.13 0.16 0.15 60 0.18 0.18 0.18 0.18 60 0.20 0.20 0.25 0.22 120 0.21 0.20 0.18 0.20 120 0.20 0.20 0.20 0.20 120 0.30 0.25 0.30 0.28 180 0.30 0.30 0.25 0.28 180 0.30 0.35 0,35 0.03 180 0.40 0.40 0.35 0.38 240 0.40 0.35 0.45 0.40 240 0.45 0.40 0.45 0.43 240 0.50 0.45 0.40 0.45 300 0.45 0.40 0.45 0.43 300 0.50 0.45 0.50 0.48 300 0.55 0.50 0.45 0.50 360 0.45 0.40 0.45 0.43 360 0.50 0.50 0.50 0.50 360 0.60 0.60 0.50 0.57 420 0.45 0.40 0.45 0.43 420 0.50 0.50 0.50 0.50 420 0.60 0.60 0.60 0.60 Temp 50oC Temp 60oC Temp 70oC Test=> 1 2 3 ave Test=> 1 2 3 ave Test=> 1 2 3 ave Time sec Time sec Time sec 60 0.20 0.30 0.35 0.28 60 0.30 0.30 0.25 0.28 60 0.30 0.40 0.40 0.37 120 0.40 0.40 0.40 0.40 120 0.40 0.40 0.35 0.38 120 0.40 0.50 0.55 0.48 180 0.45 0.45 0.45 0.45 180 0.60 0.50 0.50 0.53 180 0.70 0.60 0.65 0.65 240 0.45 0.50 0.50 0.48 240 0.70 0.60 0.60 0.63 240 0.90 0.80 0.85 0.85 300 0.50 0.55 0.55 0.53 300 0.80 0.75 0.75 0.77 300 0.90 1.00 1.00 0.97 360 0.60 0.60 0.65 0.62 360 0.90 0.80 0.85 0.85 360 1.15 1.25 1.20 1.20 420 0.70 0.75 0.70 0.72 420 1.10 0.95 1.00 1.02 420 1.40 1.40 1.30 1.37 Temp 80oC Test=> 1 2 3 ave Time sec 60.00 0.40 0.40 0.35 0.38 120.00 0.60 0.55 0.55 0.57 180.00 0.90 0.90 0.90 0.90 240.00 1.20 1.20 1.20 1.20 300.00 1.30 1.40 1.35 1.35 360.00 1.45 1.50 1.50 1.48 420.00 1.60 1.65 1.60 1.62 Calculation: To gain an average reading over my results I used the following formula: Average absorbency = Test 1+2+3 3 eg. 20ºC, at 1min 0.13+0.16+ 0.15 =0.15 3 Also to back up my results I found out what the rate of reaction was for each temperature, using the averages calculated before. I did this by using the following formula: Rate of reaction = change in absorbency/change in time eg. 100ºC, 4 minutes: 0.53/4= 0.1325 Skill C-Analysing Evidence And Drawing a Conclusion Graph Analysis: Average absorbency graph: Looking at this graph shows me the trends that occur in my results. The ability to draw a line of best fit showed that the points lie on a line of positive correlation. 80ºC had the most pigment released after 7mind and with 20°C. The 20ºC, 40ºC and 60ºC were all where...

