Answered: 1. How did the temperature change…

Chemistry: Matter and Change

1st Edition

ISBN:9780078746376

Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Publisher:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Chapter15: Energy And Chemical Change

Section: Chapter Questions

Problem 57A

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Question

1. How did the temperature change throughout the experiment? Use relative terms like increase, decrease or no change, to explain.

2. What phase change is occurring during the addition of 20 to 100 calories?

3. What is happening to the water molecules in the solid-state during the addition of the first 20 calories, and in the liquid state during the

addition of 100 to 200 calories?

4. What phase change is occurring during the addition of 200 to 700 calories?

5. Write a paragraph that explains what latent heat is and use latent heat to explain what the ice, liquid, and gas experienced throughout the experience

Temperature (°C)
Calories
-40
20
100
100
200
100
400
100
600
100
700
120
780

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