B. A sample of penguinium (m=24.5 grams) is exposed to 133 joules and its temperature rises from 12C to 355 C. What is its specific heat capacity? 9. A 84.5 gram sample of speedskatium (c=0.266 J/g C) is heated 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/g C) can be taken from 4°C to 97°C it 2193 Joules are used? 11. A 33.54 gram steel nail (c=0.41 J/g"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?
B. A sample of penguinium (m=24.5 grams) is exposed to 133 joules and its temperature rises from 12C to 355 C. What is its specific heat capacity? 9. A 84.5 gram sample of speedskatium (c=0.266 J/g C) is heated 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/g C) can be taken from 4°C to 97°C it 2193 Joules are used? 11. A 33.54 gram steel nail (c=0.41 J/g"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?
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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8,10,11

Transcribed Image Text:Thermochemistry Practice Problems
Equabion
Solving For
Change in Temperature
Mass of Sample
cAT
Specific Heat
Heat Added or Remaved
7. A 24.6 gram ron nail (c=0.42 Jig C), starting at 13 C is heated to a temperature of 664 C. How many
joules were needed to do this?
Q-24.5 x 0,42 x 651 = 6726 Joules
B. A sample of penguinium (m324.5 grams) s exposed to 133 joules and its temperature rises from 12C
to 355 C. What is its specific heat capacity?
9. A 84.5 gram sample of speedskatium (c=0.266 J/g C) is heated 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/g C) can be taken trom 4"C to 97 C it 2193 Joules are used?
11. A 33.54 gram steel nal (c%3D0.41 J/g "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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