Unformatted text preview: Calculate the standard reaction entropy at 298 K of a) Zn(s) + Cu 2+ (aq) → Zn 2+ (aq) + Cu(s) b) C 12 H 22 O 11 (s) + 120 2 (g) → 12CO 2 (g) + 11H 2 O(l) USE TABLES/WEB. 6. Calculate the change in the entropies of the system and the surroundings, and the total change in entropy, when the volume of a sample of argon gas of mass 21 g at 298 K and 1.50 bar increases from 1.20 L to 4.60 L in a) an isothermal reversible expansion, b) an isothermal irreversible expansion against p ex = 0, and c) an adiabatic reversible expansion. 7. The heat capacity of chloroform (trichloromethane, CHCl 3 ) in the range 240 K to 330 K is given by C p,m /(J K1 mol1 ) = 01.47 + 7.5 x 102 (T/K). In a particular experiment, 1.00 mol CHCl 3 is heated from 273 K to 300 K. Calculate the change in molar entropy of the sample....
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 Fall '08
 Gennis
 Physical chemistry, Thermodynamics, pH, Energy, Entropy, Heat, molar entropy

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