Activity 1. Solving Problems related to First Law of Thermodynamics1. A gas expands and does work on the surroundings equal to 279 J. At the sametime, it absorbs 216 J of heat from the surroundings. What is the change inenergy of the system?2. A certain gas expands in volume from 2.0 L to 6.0 L at constant temperature.Calculate the work done by the gas if it expands against a constant pressure of1.2 atm.3. A person heats up a can of soup on a stove. If they do 250 joules of work on thesoup by stirring it as the burner adds 1675 joules of heat, what is the change in itsinternal energy?

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A gas expands and does work on the surroundings equal to 279 J. At the same time, it absorbs 216 J of heat from the surroundings. What is the change in energy of the system?

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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Question

Activity 1. Solving Problems related to First Law of Thermodynamics
1. A gas expands and does work on the surroundings equal to 279 J. At the same
time, it absorbs 216 J of heat from the surroundings. What is the change in
energy of the system?
2. A certain gas expands in volume from 2.0 L to 6.0 L at constant temperature.
Calculate the work done by the gas if it expands against a constant pressure of
1.2 atm.
3. A person heats up a can of soup on a stove. If they do 250 joules of work on the
soup by stirring it as the burner adds 1675 joules of heat, what is the change in its
internal energy?

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