2. (a) A sample consisting of 1.00mol Ar is expanded isothermally at 20 °C from 10.0dm3 to 30.0dm3 (i) reversibly, (ii) against a constant external pressure equal to the final pressure of the gas, and (iii) freely (against zero external pressure). For the three processes calculate q, w, and ΔU.

2. (a) A sample consisting of 1.00mol Ar is expanded isothermally at 20 °C from 10.0dm3 to 30.0dm3 (i) reversibly, (ii) against a constant external pressure equal to the final pressure of the gas, and (iii) freely (against zero external pressure). For the three processes calculate q, w, and ΔU.

Physical Chemistry

2nd Edition

ISBN:9781133958437

Author:Ball, David W. (david Warren), BAER, Tomas

Publisher:Ball, David W. (david Warren), BAER, Tomas

Chapter1: Gases And The Zeroth Law Of Thermodynamics

Section: Chapter Questions

Problem 1.65E: Determine an expression for V/T p, n in terms of and . Does the sign on the expression make sense...

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