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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

Principles of Modern Chemistry
Principles of Modern Chemistry
8th Edition
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Chapter12: Thermodynamic Processes And Thermochemistry
Section: Chapter Questions
Problem 55P
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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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