PS5_11 - -1 mol-1 ) of a constant-volume sample of Ne at...

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Problem Set #5 - 1 - Chem 444 – Spring 2011 Homework Set #5 1) a) McQ&S, 20-3 b) McQ&S, 20-4 2) McQ&S, 20-22 3) McQ&S, 20-25 4) Calculate the increase in entropy (J/K) when 2.00 mol of a monatomic ideal gas (C v = 3/2 nR) are heated from 300 K to 600 K and simultaneously expanded from 30.0 L to 50.0 L 5) 1.00 mol of a monatomic ideal gas has an initial state of 10.0 atm and 600 K. You can assume that all processes in this problem are reversible. a) Calculate q, w, Δ U, Δ H (all in kJ) and Δ S (J/K) for an isothermal expansion to a final pressure of 1.00 atm. b) Calculate q, w, Δ U, Δ H (all in kJ) and Δ S (J/K) for a subsequent adiabatic expansion to a final temperature of 300 K 6) Calculate the molar entropy (J K
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Unformatted text preview: -1 mol-1 ) of a constant-volume sample of Ne at 500 K given that it is 146.22 J K-1 mol-1 at 298K 7) Use statistical mechanics (partition functions!) to calculate the standard molar entropy (J K-1 mol-1 ) of neon gas at 298K. Compare this to the value given in problem #6. 8) Use statistical mechanics to calculate the vibrational contribution to the molar entropy (J K-1 mol-1 ) of Cl 2 at 500 K given that the wavenumber of the vibration is 560 cm -1 9) a)McQ&S, 21-41 b)McQ&S, 21-42 *You MUST justify your answers in order to receive credit for these problems 10) Calculate the molar entropy (J K-1 mol-1 ) for isothermally preparing a mixture containing 99 mol of O 2 (g) and 1 mol of N 2 (g)...
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This note was uploaded on 04/01/2012 for the course CHEM 444 taught by Professor Gruebele,m during the Spring '08 term at University of Illinois, Urbana Champaign.

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