Homework 1-problems - tran (pt4954) Homework 1 sutcliffe...

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Unformatted text preview: tran (pt4954) Homework 1 sutcliffe (51045) 1 This print-out should have 20 questions. Multiple-choice questions may continue on the next column or page find all choices before answering. 001 10.0 points If G rxn is positive, then the forward reaction is (spontaneous / nonspontaneous) and K is (less / greater) than one. 1. nonspontaneous; less 2. nonspontaneous; greater 3. spontaneous, greater 4. spontaneous, less 5. None of these; G is not directly related to K . 002 10.0 points Which combination of G and K is im- possible? 1. G = 16 J, K = 635 2. G =- 37 . 4 kJ, K = 3 . 57 10 6 3. G = 18 . 5 J, K = 0 . 993 4. G = 86 . 4 kJ, K = 7 . 31 10 16 5. G =- 72 J, K = 1 . 03 003 10.0 points When G is calculated for a proposed reac- tion, the process being described is 1. any mixture of reactants converted to equilibrium mixture. 2. 100% reactants converted to equilibrium mixture. 3. any mixture of reactants and products converted to equilibrium mixture. 4. 100% reactants converted to 100% prod- ucts. 004 10.0 points Note: The reaction progress axis reads from all reactants (far L) to all products (far R) The figure represents a reaction at 298 K. b b b b b G A B C D E rxn progress Based on the figure, the standard reaction is 1. nonspontaneous. 2. spontaneous. 005 10.0 points A gas-phase reaction has K p = 3 . 99 10 20 at 25 C. Calculate G for this reaction....
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Homework 1-problems - tran (pt4954) Homework 1 sutcliffe...

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