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Ashton Anderson 29 Calorimetry S

Explore calorimetry and how heat energy affects temperature. Investigate the role of mass and substance type in energy transfer using a real-world heating scenario with water containers.

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    Calorimetry What is the relationship between heat energy and temperature? Why?____________________________________________________ When a substance is heated, the temperature of that substance increases. Will the same amount of energy cause different substances to have identical temperature increases? Will the same amount of energy be needed to cause identical temperature increases in different amounts of the same substance? In this activity you will explore how mass, temperature, heat energy, and the type of substance are related. After heating for 5 minutes at a rate of 30 Joules per minute 1. In Model I, which container holds more grams ot water? 8 qt Stockpot 2. Consider the process described in Mode] 1: a. How many joules of energy' were added to the saucepan? 150 b. How many joules of energy were added to the stockpot? 150 c. In which container did the liquid gain more energy or did both gain rhe same amount? Explain your reasoning. They both gained the same amount, it is just dispersed differently. d. For each container include whether the temperature is expected to increase, decrease or remain the same after heating. Explain your reasoning. It is being heated so it would increase in heat. Calorimetry ]

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    Model 2 - Experimental Data for Heating Water Experiment 1 Trial Mass (g) AT (°C) Added Energy' (Joules) A 1.00 26.8 112 B 2.00 13.4 112 C 2.50 10.7 112 D 3.00 8.93 112 E 3.50 7.66 112 F 4.00 6 89 112 Experiment 2 Trial Mass (g) AT (°C) Added Energy' (Joules) A 3-00 3.00 37.6 B 3.00 6.00 75.2 C 3-00 9.00 113 D 3.00 12.0 150 E 3.00 15.0 188 F 3.00 18.0 200 Experiment 3 Trial Mass (g) AT (°C) Added Energy' (Joules) A 1.00 9.00 37.6 B 2.00 9.00 75.0 C 2.50 9.00 94.1 D 3.00 9.00 113 E 3.50 9.00 132 F 4.00 9.00 150 3. In the data tables in Model 2, what does AT mean? Change in Temperature 4. Which experiment in Model 2 illustrates how the amount of energy needed to achieve the same temperature change depends on the mass of water? Expiriment 1 5. Which experiment in Model 2 illustrates how different amounts of energy result in different temperature changes when the mass of water is constant? Expinmenl 2 > 6. Why was it necessary to perform three experiments to find the relationships betwren mass, temperature change, and energy? Because we can see the differences and effects all of the variables have on the expirlmenl.

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