Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Question
8,10,11
![BIUA
11
Arial
Thermochemistry Practice Problems
Equabion
Solving For
Change in Temperature
Mass of Sample
Specific Heat
-med?
Heat Added or Removed
7. A 24.6 gram iron nail (c=0.42 Jig C), starting at 13°Cis heated to a temperature of 664 C. How many
joules were needed to do this?
Q-24.6 x 0.42 x 651 = 6726 Joules
B. A sample of penguinium (m=24.5 grams) s exposed to 133 joules and its temperature rises from 12 C
to 355"C. What is its specific heat.capacity?
9. A 84.5 gram sample of speedskatium (c-0.256 Jig C) s heared with 499 Joules. If its starting
temperature is 21 C, what will its final temperature be?
T-43.2 C
10. How many grams of water (c=4.18 J/gC) can be taken from 4C to 97 C it 2193 Joules are used?
11. A 33.54 gram steel nail (c%3D0.41 Jig C) is heated until it glows. It is then dropped into a cup with 103
grams of water (c 4.18 J/g C) at a temperature of 5.9"C. If the water and steel reach an equilibrium
temperature of 72.5"C, what was the hot temperature of the steel?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F24bf2450-39e8-47a2-b6d3-2df49a54adbe%2F7c267925-6885-495d-8aa7-12be688e4ff3%2Fuwsr48_processed.jpeg&w=3840&q=75)
Transcribed Image Text:BIUA
11
Arial
Thermochemistry Practice Problems
Equabion
Solving For
Change in Temperature
Mass of Sample
Specific Heat
-med?
Heat Added or Removed
7. A 24.6 gram iron nail (c=0.42 Jig C), starting at 13°Cis heated to a temperature of 664 C. How many
joules were needed to do this?
Q-24.6 x 0.42 x 651 = 6726 Joules
B. A sample of penguinium (m=24.5 grams) s exposed to 133 joules and its temperature rises from 12 C
to 355"C. What is its specific heat.capacity?
9. A 84.5 gram sample of speedskatium (c-0.256 Jig C) s heared with 499 Joules. If its starting
temperature is 21 C, what will its final temperature be?
T-43.2 C
10. How many grams of water (c=4.18 J/gC) can be taken from 4C to 97 C it 2193 Joules are used?
11. A 33.54 gram steel nail (c%3D0.41 Jig C) is heated until it glows. It is then dropped into a cup with 103
grams of water (c 4.18 J/g C) at a temperature of 5.9"C. If the water and steel reach an equilibrium
temperature of 72.5"C, what was the hot temperature of the steel?
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