Question 8: A sample consisting of 1.00 mol Ar is expanded isothermally at 0°C from 22.4 dm³ to 44.8 dm³: (a) reversibly, (b) irreversibly against a constant external pressure equal to the final pressure of the gas, (c) freely (against zero external pressure). For the three processes, calculate q, w, AU and AH. Give all your answers to three significant figures.

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
Chapter13: Spontaneous Processes And Thermodynamic Equilibrium
Section: Chapter Questions
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Question 8: A sample consisting of 1.00 mol Ar is expanded isothermally at 0°C
from 22.4 dm³ to 44.8 dm³:
(a) reversibly,
(b) irreversibly against a constant external pressure equal to the final pressure
of the gas,
(c) freely (against zero external pressure).
For the three processes, calculate q, w, AU and AH. Give all your answers to three
significant figures.
Transcribed Image Text:Question 8: A sample consisting of 1.00 mol Ar is expanded isothermally at 0°C from 22.4 dm³ to 44.8 dm³: (a) reversibly, (b) irreversibly against a constant external pressure equal to the final pressure of the gas, (c) freely (against zero external pressure). For the three processes, calculate q, w, AU and AH. Give all your answers to three significant figures.
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