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An ideal gas with molar heat capacity at constant volume, Cy,m = 3/2R undergoes a reversible isothermal expansion at 300 K until the pressure is half of its initial value with Pex = 0.500 bar and Tsur = 300 K. The ideal gas is with initial temperature, Ti = 300 K and initial pressure, P, = 1.00 bar. a) Identify the change in internal energy (AU) (in unit kJ mol*) and change in enthalpy (AH) (in unit kJ mol1). b) Calculate work done (w) (in unit kJ). c) Identify heat change (q) (in unit kJ). d) Calculate the change in entropy for the system (ASsys) and change in entropy of the surrounding (ASur). Identify the change in total entropy (AStot). The unit of the change in entropy is J K1. e) State whether the process is spontaneous, not spontaneous or equilibrium.

An ideal gas with molar heat capacity at constant volume, Cy,m = 3/2R undergoes a reversible isothermal expansion at 300 K until the pressure is half of its initial value with Pex = 0.500 bar and Tsur = 300 K. The ideal gas is with initial temperature, Ti = 300 K and initial pressure, P, = 1.00 bar. a) Identify the change in internal energy (AU) (in unit kJ mol*) and change in enthalpy (AH) (in unit kJ mol1). b) Calculate work done (w) (in unit kJ). c) Identify heat change (q) (in unit kJ). d) Calculate the change in entropy for the system (ASsys) and change in entropy of the surrounding (ASur). Identify the change in total entropy (AStot). The unit of the change in entropy is J K1. e) State whether the process is spontaneous, not spontaneous or equilibrium.

Chemistry
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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please solve the questions d and e only!!

An ideal gas with molar heat capacity at constant volume, Cy,m = 3/2R undergoes a reversible isothermal expansion at 300 K until the pressure is half of its initial value with Pex = 0.500 bar and Tsur = 300 K. The ideal gas is with initial temperature, Ti = 300 K and initial pressure, P; = 1.00 bar. a) Identify the change in internal energy (AU) (in unit kJ mol*) and change in enthalpy (AH) (in unit kJ mol4). b) Calculate work done (w) (in unit kJ). c) Identify heat change (q) (in unit kJ). d) Calculate the change in entropy for the system (ASsys) and change in entropy of the surrounding (ASaur). Identify the change in total entropy (AStot). The unit of the change in entropy is J K1. e) State whether the process is spontaneous, not spontaneous or equilibrium.
Transcribed Image Text:An ideal gas with molar heat capacity at constant volume, Cy,m = 3/2R undergoes a reversible isothermal expansion at 300 K until the pressure is half of its initial value with Pex = 0.500 bar and Tsur = 300 K. The ideal gas is with initial temperature, Ti = 300 K and initial pressure, P; = 1.00 bar. a) Identify the change in internal energy (AU) (in unit kJ mol*) and change in enthalpy (AH) (in unit kJ mol4). b) Calculate work done (w) (in unit kJ). c) Identify heat change (q) (in unit kJ). d) Calculate the change in entropy for the system (ASsys) and change in entropy of the surrounding (ASaur). Identify the change in total entropy (AStot). The unit of the change in entropy is J K1. e) State whether the process is spontaneous, not spontaneous or equilibrium.
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