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Partner Quiz KEY

# Partner Quiz KEY - Partner Quiz Each question is worth 3...

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Partner Quiz! Each question is worth 3 points. You and your partner may use a calculator and a reference table, but class notes are not permitted! See what areas you are weak in and focus on these topics when you are preparing for the unit test. 1. Nitric oxide reacts with chlorine to form NOCl: _ 2 _ NO (g) + _ 1 _ Cl 2 (g) _ 2 _ NOCl (g) Substance NO (g) Cl 2 (g) NOCl (g) H (kJ/mol) 90 0 52 S (J/mol K) 211 223 262 What is the value of G for this reaction at 200 o C? a. -51.8 kJ H = -76 kJ b. 51.8 kJ S = -131 J/K c. 18.8 kJ d. -18.8 kJ G = H - T S e. 43.3 kJ 2. Calculate the G for the combustion of propane. _ 1 _ C 3 H 8 (g) + _ 5 _ O 2 (g) _ 3 _ CO 2 (g) + _ 4 _ H 2 O (g) Substance C 3 H 8 (g) O 2 CO 2 H 2 O G (kJ/mol) -24.5 0 -394.4 -228.6 a. -2073.1 kJ G = n G prod - n G reactants b. -1387.3 kJ c. -598.5 kJ d. 598.5 kJ e. 2073.1 kJ 3. For a chemical reaction to be non-spontaneous at any temperature, what must be true? a. S > 0, H > 0 b. S > 0, H < 0 c. S < 0, H < 0 d. S < 0, H > 0 The reaction should be endothermic and decrease entropy. The value for G will always be positive. 4.

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Partner Quiz KEY - Partner Quiz Each question is worth 3...

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