The group of students then did an experiment using four different solutes to see which one would be best in their hot pack. To determine which solute would be best, the students mixed 20 g of each solute into separate containers that each held 50 mL of 24°C water. The students then recorded the temperature changes in each container. The data table below shows the maximum and minimum temperature they obtained for each solute, as well as the temperature difference.

Question

21-07-2022
Chemistry

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The group of students then did an experiment using four different solutes to see which one would be best in their hot pack. To determine which solute would be best, the students mixed 20 g of each solute into separate containers that each held 50 mL of 24°C water. The students then recorded the temperature changes in each container. The data table below shows the maximum and minimum temperature they obtained for each solute, as well as the temperature difference.

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mickymike92 mickymike92 · Answer 1 · 2022-07-23T00:41:29+02:00

Based on the value of temperature increase, the best solute to be used in the hot pack is calcium chloride.

What are exothermic reactions?

Exothermic reactions are reactions in which heat is liberated or given by the substances reacting.

The reaction in hot packs are exothermic reactions.

Based on the increase in temperature observed when 20 g of each solute is mixed into separate containers that each held 50 mL of 24°C water, the best solute to be used in the hot pack is calcium chloride.

In conclusion, exothermic reactions give off heat.

Learn more about exothermic reactions at: https://brainly.com/question/2924714

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