Table 4: Cold Pack Data Time (sec) Temperature (°C) Initial 18 30 10 60 6 90 4 120 4 150 4 180 4 210 5 240 5 270 5 300 6

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Table 4: Cold Pack Data
Time (sec)
Temperature (°C)
Initial
18
30
10
60
6
90
4
120
4
150
4
180
4
210
5
240
5
270
5
300
6
330
6
360
6
390
6
420
6
450
7
In Experiment 2: Cold Packs vs. Hand Warmers,
according to your experimental results:
1) Calculate the overall temperature change for the cold pack,
ΔT = Tmax - Tmin
2) Explain why this reaction is considered endothermic.
Show all work and be detailed in your response in order to
receive credit.