1. For the reaction between hydrogen gas and fluorine gas the following data was collected H2(g) + F2(g) → 2HF(g) [H;] 0.50 Initial Rate, M/s Experiment 1 [F;] 0.25 0.4260 2 0.25 0.25 0.1065 3 0.10 0.20 0.0682 4 0.10 0.35 0.1193 5 0.10 0.175 0.0596 a) What is the rate order of the reaction b) What is the rate order of the reaction with respect to H2? with respect to F2? 4 4 c) What is the overall rate law and rate constant? d) What is the overall order of reaction? 4 3

For each of the following reactions, identify whether the reactants or the products would have more potential energy. + C(s) + 2H₂O(g) + 90.1 kJ → 2CO2(g) + 2H₂(9) CO(g) + H₂O(g) - 2CO₂(g) + 2H₂(g) + 41.2 kJ C₂H₂OH(I) + 30₂(9) - 2C0₂(g) + 3H₂O(g) C3H8(9) + 6H₂O(g) → 3CO₂(g) + 10H₂(g) Use the following to answer the next 3 questions. The smelting of iron occurs in a blast furnace, as represented by the following overall equation. Step I 3Fe2O3(s) + CO(g) - CO₂(g) + 2Fe3O4(s) A+H° = -47.2 kJ Step II Fe₂O4(s) + CO(g) - CO₂(g) + 3FeO(s) A,H+19.4 kJ Step III FeO(s) + CO(g) - CO₂(g) + Fe(s) AH = -11.0 kJ The molar enthalpy of reaction for Fe₂O3(s) in the reaction represented by Step I is Record your 3-digit answer. Include sign; do not include units. Potential Energy (kJ) AH-514.1 kJ Reactants ACH° +374.1 kJ Which steps in the above process can be represented by the following potential energy diagram? Select one: O Step II only O Steps I and III O Steps I, II and III O None of the above…

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Ethylene (C2H4) plays an important role in the ripening of certain fruits and vegetables. It is sometimes supplemented under controlled conditions at produce—processing facilities but is also produced naturally by many fruit-bearing plants.  Although the actual process by which plants produce ethylene is a complex one, imagine that it is produced by the simple breakdown of glucose according to the equation: C6H12O6 (s)  à 3 C2H4 (g) + 3 O2 (g)   Given S°= 212.1 J/molK, DG°= -910.56 kJ/mol and DH°= -1274.5 kJ/mol for C6H12O6 (s).   a.) Determine the sign of DS° for the reaction. b.) Calculate DS° for the reaction. c.) Using the tabulated DG° values in the appendix, calculate DG° for the reaction. d.) Above what temperature (in °C) is the reaction spontaneous? Hint: you will first have to calculate DH° using tabulated values.