Bomb Calim.docx - Oxygen Bomb Calorimetry Using oxygen bomb calorimetry one can estimate the caloric value of organic materials This is useful in

# Bomb Calim.docx - Oxygen Bomb Calorimetry Using oxygen bomb...

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Oxygen Bomb Calorimetry 4/18/18 Using oxygen bomb calorimetry, one can estimate the caloric value of organic materials. This is useful in quantifying energy levels in plant biomass during the effects of eutrophication. I hypothesize that over time, plant biomass will decrease, thus lowering the caloric value of the remaining material. Organic plant matter acquired from our aquatic (Nitrogen/Phosphorus rich) tanks were measured for their caloric value via combustion in the bomb Calorimeter. The difference in temperature inside the unit was recorded as well as the starting and ending mass of the organic material. Calculations in JMP (online data-analysis software) provided us with the cal/g AFDW. I predicted as leaf mass decreased, so did the caloric value of the organic material.

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Unformatted text preview: There was a strong negative correlation between time, plant biomass, and caloric value. Plant biomass decreased by 0.0745 grams per day over the course of 85 days. Caloric value decreased by 0.6813 cal/g per day in relation to biomass decreasing. My hypothesis is strongly supported by this data. Caloric values decreased in conjunction with the remaining plant biomass. Figure 1: This figure demonstrates the relationship between leaf mass and the remaining caloric value over 85 days. Leaf mass was 5.0g at zero days and ended between 3.8 and 4.0 grams by day 85. The Caloric value was measured at 4940.35 (cal/g AFDW) on day 14 and decreased to 4022.15 (cal/g AFDW) by day 85. Overall, we see a negative correlation between leaf mass, caloric value and time....
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