Recovering aluminum directly from its ore, which is primarily aluminum oxide, involves the following reaction, for which thermodynamic data is tabulated below: 2 Al203(s) <.-> 4 Al(s) + 3 02(g) Predict the spontaneity of the reaction. aluminum aluminum oxide охуgen H°f (kJ/mole) F1676.0 S° (J /K) 28.28 50.96 205.15 Spontaneous at all temperatures Spontaneous at high temperatures only Spontaneous at low temperatures only Spontaneous in the reverse direction at all temperatures

Q: COCl2(g) ---> CO(g) + Cl2(g)   6. Is this reaction spontaneous under standard conditions? 7. If…

A: If there is an increase in the moles of gaseous compounds then the entropy change for the reaction…

Q: Consider these two reactions: Reaction 1: 20F₂(g) → O₂(g) + 2 F₂ (g) AH = -49.4 kJ Reaction 2: N₂(g)…

A: ★ Answer : Reaction 2  is non spontaneous. ★ Explanation :

Q: H2 reacts with the halogens (X2) according to the reaction: (8)=x + (8)*H 2 HX(8) where X2 can be…

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Q: Determine the free energy change for each of the following reactions, which are run under standard…

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Q: The thermal decomposition of molten sodium chloride into elemental gaseous sodium and elemental…

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Q: 6. At a constant pressure the following reaction is exothermic: 2 NOe) → N;Oe)- Which of the…

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Q: Identify whether each process is spontaneous or non-spontaneous. 1. A spoon dipped in boiling water…

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Q: Consider this reaction: N2 (s) + 2 02 (g)→ 2NO2 (g) AS° = -121.77 J/K.mol; AH° = %3! 66.36 kJ/mol…

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A: The ∆H0 and ∆S0 of the reaction can be calculated as follows:

Q: For the reaction below, which statement best describes what is happening with the sign of ΔG0? N…

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Q: Calculate ΔH° for the process Sb(s) + 5 2 Cl2 (g) ⟶ SbCl5 (s) from the following information: Sb(s)…

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Q: Consider the following reaction at 25°c: 3 국지2(g) + 국0,(g) + (g) → HNO, (ag) -H,(g) → HNO, (aq) (3)…

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Q: A key step in the production of sulfuric acid is the oxidation of SO2(g)to SO3(g): 2 SO2(g)+ O2(g)…

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Q: 1. For the reaction: SO3(g) → SO2(0) + O2(0). AH° the reaction spontaneous at 25°C? At what…

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Q: 2. Calculate the temperature in which the following reactions become spontaneous. b) Reaction B: AH…

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Q: Refer to Appendix B in your textbook entitled Standard Thermodynamic Values for Selected Substances…

A: Given: 2SO2(g) + O2(g) -----&gt; 2SO3(g) From standard Table:  ∆f H°(SO2(g))     = -296.8 kJ/mol ∆f…

Q: Is the following reaction spontaneous at room temperature (25.0 °C) ? 2 H2S(g) + 3 O2(g) 2 SO2(g) +…

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Q: Consider the reaction 2Hg (l) + O2 (g) → 2HgO (s), for which ∆H°= -181.7 kJ/mol and ∆S°= -216.5…

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Q: (C2H5OH ) +(H2) →(CH3CHO) (AS = 114.2 J/K),(AH = 68.95 KJ/K ) %3D Calculate AG for this reaction at…

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Q: SBr4 (g) → S (g) + 2 Br2 (l)         ΔGo = 77.75 kJ    ΔSo = 125.2 J/K    ΔHo = 115.4 kJ What would…

A:

Q: Which of the following are spontaneous processes? a. Silverwares tarnish when exposed to air b. A…

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Q: Use the tables in the text to determine whether each reaction is spontaneous under standard…

A:

Q: Above what temperature does the following reaction become nonspontaneous?               2 H2S(g) +…

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Q: For a particular reaction, AH° = -28.4 kJ and AS = -87.9 J/K. Assuming these values change very…

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Q: Consider the oxidation of NO to NO2 :NO(g) + 12 O2(g)¡NO2(g)Calculate ΔG°rxn at 25 °C and determine…

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Q: For a chemical reaction to be spontaneous at all temperatures in the reverse direction, which of the…

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Q: For a certain chemical reaction, ΔH°= ‒40.0 kJ and ΔS°= ‒150.0 J/K. (a) Does the reaction lead to an…

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Q: The standard enthalpy change and standard entropy change for the reaction are: A,HP = -666.2 kJ…

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A:

Q: Consider the following reaction   AgBr(s) → Ag+(aq) + Br−(aq), ΔGo = +69.1 kJ   Calculate ΔG for the…

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Q: Which statement is true for the temperature dependence of the reaction below if DH = 1319 kJ/mol and…

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Q: Calculate the temperature (in oC) above which the following standard reaction is spontaneous.…

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Q: Under what temperature range would the following reaction be spontaneous?   N2(g) + 3 H2(g) ⇌ 2…

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Q: Consider the reaction described by the chemical equation shown. 3C,H, (g) → C,H,(1) AHan = -633.1 kJ…

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Q: Indicate whether the following processes are spontaneous or nonspontaneous.(a) Liquid water freezing…

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Q: Which equation represents the second law of thermodynamics? A. ΔS univ > 0 B. ΔS sys > 0 C. (Δ S…

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Q: Which of the following variables tells us about the extent of a reaction in thermodynamics?    a.…

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A: Given reaction: 4 Ca3PO4 (s)  +   3 O2 (g)    →    12 CaO (s)   +   P4O10 (s)  ∆H = +5946.8  ∆G =…

Q: Which of the following statements is true of process that is spontaneous in the forward direction?…

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Q: C6H12O6(s)+ 6 02(g) 6 CO2(g) + 6 H2O(g) AS ran = +900. J/(mol,n K) Substance Approximate S (J/(mol…

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Q: Determine whether the following process are spontaneous or non-spontaneous. Write your answers on…

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Q: Consider the following reaction: CaO(s) + CO2(g) → CaCO3(s); ΔG° = –130.9 kJ at 298 K At what…

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Q: The standard enthalpy change and standard entropy change for the reaction are: AHP = -1036.0 kJ mol1…

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Q: Calculate the temperature, in Kelvins, at which the decomposition of calcium carbonate becomes…

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Q: ΔHorxn = 102 kJ and ΔSorxn = 299 J K-1. Determine the minimum temperature (in K) at which the…

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Q: -Find AH, AS, and AG. Is this reaction exothermic and is it spontaneous? NO (g) + ½ O2 (g) -> NO2…

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Q: A certain reaction is spontaneous at 25°C. If the enthalpy change for the reaction is 29.8 kJ/mol,…

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Q: Consider the reaction for the decomposition of carbon tetrachloride gas:CCl4(g)¡C(s, graphite) + 2…

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Q: For a particular reaction, AH = 20.1 kJ/mol and AS" = 45.9 J/(mol-K). Assuming these values change…

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Q: Calculate the temperature in kelvins above which this reaction is spontaneous.

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Q: Consider the two reactions below, resulting in the formation of hydrazine a. Reaction A: 2 NH3 (g)…

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Q: Consider the following reaction: CaCO 3(s) CaO (g) +CO 2(g) For this reaction, delta S = +158.9…

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Q: Which are spontaneous at all temperatures? Choose one or more: 2H,S(g) + 302(8) –→ 2H,0(g) + SO,(g)…

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