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1. One mole of an ideal gas expands isothermally at T = 20°C from 1.1 m³ to 2.1 m³. The gas constant is given by R= 8.314 J/(mol K). (a) Calculate the work done by the gas during the isothermal expansion. Wg= (b) Calculate the heat transfered during the expansion. Q= (c) What is the change in entropy of the gas? = AS, gas J/K

1. One mole of an ideal gas expands isothermally at T = 20°C from 1.1 m³ to 2.1 m³. The gas constant is given by R= 8.314 J/(mol K). (a) Calculate the work done by the gas during the isothermal expansion. Wg= (b) Calculate the heat transfered during the expansion. Q= (c) What is the change in entropy of the gas? = AS, gas J/K

Chemistry: Principles and Practice
Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter17: Chemcial Thermodynamics
Section: Chapter Questions
Problem 17.103QE: A 220-ft3 sample of gas at standard temperature and pressure is compressed into a cylinder, where it...
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1. One mole of an ideal gas expands isothermally at T = 20°C from 1.1 m³ to 2.1 m³. The gas constant is given by R = 8.314 J/(mol K). (a) Calculate the work done by the gas during the isothermal expansion. Wg² = ✓J (b) Calculate the heat transfered during the expansion. Q= ✓ J (c) What is the change in entropy of the gas? AS = ✔J/K gas (c) What is the entropy change of the thermal reservoir? = AS reservior ✔J/K (d) What is the entropy change for the gas+reservior system? AS system ✔J/K Hint: For an isothermal process how is the heat transferred by an ideal gas related to work? What is the formula for work done by an ideal gas during isothermal expansion?
Transcribed Image Text:1. One mole of an ideal gas expands isothermally at T = 20°C from 1.1 m³ to 2.1 m³. The gas constant is given by R = 8.314 J/(mol K). (a) Calculate the work done by the gas during the isothermal expansion. Wg² = ✓J (b) Calculate the heat transfered during the expansion. Q= ✓ J (c) What is the change in entropy of the gas? AS = ✔J/K gas (c) What is the entropy change of the thermal reservoir? = AS reservior ✔J/K (d) What is the entropy change for the gas+reservior system? AS system ✔J/K Hint: For an isothermal process how is the heat transferred by an ideal gas related to work? What is the formula for work done by an ideal gas during isothermal expansion?
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