10F_Chem0330_midterm1 copy

10F_Chem0330_midterm1 copy - Chem. 0330 1st Midterm Date:...

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1 of 8 Chem. 0330 1 st Midterm Date: Oct. 12, 2010 Student name: ___________________ Banner ID #: __________________ Maximum number of points: 10 1. (1 point) Given the following data 2 C 6 H 6 (l) + 15 O 2 (g) 12 CO 2 (g) + 6 H 2 O (l) Δ G o = -6399 kJ / mol C (s) + O 2 (g) CO 2 ( g ) Δ G o = -394 kJ / mol H 2 (g) + ½ O 2 (g) H 2 O (l) Δ G o = -237 kJ / mol Calculate Δ G o for the reaction 6 C (s) + 3 H 2 (g) C 6 H 6 (l) ANSWER:
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2 of 8 2. (3 point) 36 grams of water are evaporated by boiling. The temperature of the steam is 100°C, and its pressure is 1 atm. The heat of vaporization Δ H vap = 44 kJ / mol. a) What is the volume of the steam? b) Calculate the work W done by the steam. c) Calculate the change of internal energy Δ U. ANSWER:
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3 of 8 3. (1 point) Calculate the equilibrium constant of the reaction 2SO 2 (g) + O 2 (g) 2SO 3 (g) The Gibbs Free Energy of reaction at std. conditions and 25 o C is Δ G r o = - 142 kJ / mol. Calculate the equilibrium constant K.
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10F_Chem0330_midterm1 copy - Chem. 0330 1st Midterm Date:...

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