mttcreviewtest11-1

mttcreviewtest11-1 - MTTC Chemistry Review Test 11 :...

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MTTC Chemistry Review Test 11 : Thermodynamics II Name MUL TIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) The value of G 0 at 373°K for the oxidation of solid elemental sulfur to gaseous sulfur dioxide, S (s, rhombic) + O2 (g) SO 2 (g) is kJ / mol. At 298K, H 0 for this reaction is -269.9 kJ/mol, and S o is +11.6 J /K. A) +4,597 B) -274.2 C) +300.4 D) -4,597 2) Which one of the following processes produces a decrease in the entropy of the system? A) melting ice to form water B) boiling water to form steam C) dissolution of solid KCI in water D) mixing of two gases into one container E) freezing water to form ice 3) For the reaction C 2 H6 (g) C 2 H 4 (g) + H2 (g) ∆Η 0 is +137 kJ/mol and S o is + 120 J / K . mol. This reaction is A) spontaneous only at high temperature B) spontaneous only at low temperature C) spontaneous at all temperatures D) unreliable E) nonspontaneous at all temperatures 4) S is positive for the reaction
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This note was uploaded on 04/25/2010 for the course CHEM 204 taught by Professor Prof.k during the Spring '10 term at Bradley.

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mttcreviewtest11-1 - MTTC Chemistry Review Test 11 :...

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