5. A sample of ethylene glycol, used in car radiators, has a mass of 34.8 g. The sample liberates 783 J of heat. The initial temperature of the sample is 22.1°C. What is the final temperature?
5. A sample of ethylene glycol, used in car radiators, has a mass of 34.8 g. The sample liberates 783 J of heat. The initial temperature of the sample is 22.1°C. What is the final temperature?
Chemistry: An Atoms First Approach
2nd Edition
ISBN:9781305079243
Author:Steven S. Zumdahl, Susan A. Zumdahl
Publisher:Steven S. Zumdahl, Susan A. Zumdahl
Chapter7: Chemical Energy
Section: Chapter Questions
Problem 109AE: A sample of nickel is heated to 99.8C and placed in a coffee-cup calorimeter containing 150.0 g...
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5. A sample of ethylene glycol, used in car radiators, has a mass of
34.8 g. The sample liberates 783 J of heat. The initial temperature
of the sample is 22.1°C. What is the final temperature?
6. A sample of ethanol, C₂H5OH, absorbs 23.4 kJ of energy. The
temperature of the sample increases from 5.6°C to 19.8°C. What is
the mass of the ethanol sample? The specific heat capacity of ethanol
is 2.46 J/g °C.
7. A child's swimming pool contains 1000 L of water. When the water
is warmed by solar energy, its temperature increases from 15.3°C to
21.8°C. How much heat does the water absorb?
8. What temperature change results from the loss of 255 kJ from a
10.0 kg sample of water?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F738f987d-9f1c-449c-b2ad-9fd22f9a1673%2F1a9a0915-2427-4223-a683-651267bfb2ce%2Fghq880s_processed.png&w=3840&q=75)
Transcribed Image Text:Practice Problems
5. A sample of ethylene glycol, used in car radiators, has a mass of
34.8 g. The sample liberates 783 J of heat. The initial temperature
of the sample is 22.1°C. What is the final temperature?
6. A sample of ethanol, C₂H5OH, absorbs 23.4 kJ of energy. The
temperature of the sample increases from 5.6°C to 19.8°C. What is
the mass of the ethanol sample? The specific heat capacity of ethanol
is 2.46 J/g °C.
7. A child's swimming pool contains 1000 L of water. When the water
is warmed by solar energy, its temperature increases from 15.3°C to
21.8°C. How much heat does the water absorb?
8. What temperature change results from the loss of 255 kJ from a
10.0 kg sample of water?
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