calorimetry Lab

Satisfactory Essays
Topics: Energy, Heat, Temperature
Calorimetry Lab

Problem: Which foods have the most calories?
Hypothesis: If we burn the food then the heating released will be measured as calories because the energy stored inside is released as heat and light.
Parts of the experiment
Control Group-water
Experimental Group- different foods
Independent variable- Type of food
Dependent Variable- temperature of water
Controlled variables- water temperature of unheated water
Materials
Stirring Rod, Beaker, ring clamp, evaporating disk, matches, crackers, marshmallows
Analysis Questions
1. Which foods gave off the most calories/gram?
Marshmallows
2. Which foods gave off the least calories/gram?
The chips give off the least, when they were burned we realized they had the least.
3. How do these results compare with your prediction? The result are somewhat like my prediction, I predicted that when the food is burned it will release heat and light.

4. The number of kilocalories in sample of chips is reported on the food label to be marshmallow kilocalories …. 97% Error |5.67-0.19| / 5.67 x 100

Marshmallow
Data
Mass of Marshmallow
2.7
Mass of Beaker
108.7
Mass of Beaker + Water
148.5
Mass of Water
39.8
Initial of Temperature of Water
24
Final Temperature of Water
28
Change in Temperature
4
Kilocalories
0.19 KC

Cracker
Data
Mass of Cracker
438
Mass of Beaker
108.7
Mass of Beaker +Water
150.8
Mass of Water
42.1
Initial Temperature of Water
24.5
Final Temperature of Water
29
Change in Temperature
4.5
Kilocalories
.1592

Data analysis
When the food is burned the energy is released (exothermic) The fire breaks the bonds in the food particle. We had water to determine the temperature change. We then took the kilocalorie and divided it by 1000 because 1 KCL equals 1000 Cal.
Conclusion
My hypothesis was similar to the results. I liked this lab because it’s a way to figure out certain

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