1. One mole of an ideal gas expands isothermally at T = 20°C from 1.1 m³ to 2.1 m³. The gas constant isgiven 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/Kgas(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/KHint: For an isothermal process how is the heat transferred by an ideal gas related to work? What isthe formula for work done by an ideal gas during isothermal expansion?

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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

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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Question

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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