4 Fe(s) + 3 0 2(g) →2 Fe 20 3(s) Which of the following correctly describes this process? O This reaction is spontaneous at all temperatures. O This reaction is nonspontaneous at all temperatures This reaction is spontaneous at high temperatures O This reaction is spontaneous at low temperatures.

Q: For the process: Z₂(g) →2 Z(g), AH° = +478 kJ. What would be predicted for the sign of ASxn and the…

A: Given reaction: Z2(g) → 2Z(g),     ∆H∘ = +478 kJ We have to find the sign of ∆Srxn and the…

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 the reaction shown below:             SnCl4(l) + 2 H2O(l) → SnO2(s) + 4 HCl(g)  ΔH˚ =…

A: Since the relationship between ΔG˚, ΔH˚ and ΔS˚ for any reaction is given by  ΔG˚ = ΔH˚ - T ΔS˚…

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

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

Q: Define spontaneity of a reaction in terms of ∆G. Determine if a process is spontaneous based on…

A:

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

A: From the given question it is given that, ΔSo < 0 ΔH0 > 0

Q: The element oxygen was prepared by Joseph Priestley in 1774 by heating mercury(II) oxide:…

A: Entropy: Entropy determines spontaneity of process. Spontaneity means perform a process in a given…

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

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

Q: If a process is exothermic and not spontaneous, then what must be true?     ∆S 0   ∆H > 0   ∆H…

A:

Q: 3. Consider the dissolution of NH,NO, in a chemical cold pack a. Is the process spontaneous? b. Is…

A: Those reaction in which energy is absorbed are known as the endothermic reactions while the…

Q: A student calculated that for a given reaction, ∆S = 22J/K and ∆H =6028 Joules. At which temperature…

A: The relation between Gibbs free energy, enthalpy and entropy with temperature is  ∆G = ∆H - T∆S  If…

Q: Which of these processes is spontaneous?a. the combustion of natural gasb. the extraction of iron…

A: The spontaneous process can take place without having energy from the external source. In these…

Q: For the process, CO 2 (s) -> CO 2 (g), this process (and explain why) A. is always spontaneous B. is…

A: For any process to be spontaneous, the free energy change must be negative.delta G = delta H - T…

Q: Which is true for the endothermic reaction 2 SO3(g) → 2 SO,(g) + 02(g)? A) Spontaneous at all T B)…

A: According to the second law of thermodynamics, the spontaneous nature of the reaction is determined…

Q: Consider the following thermochemical equation: H2O2(1) H2O(1) + %02(g) AH= -98.2 kJ When is this…

A:

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

A: Spontaneous processes = These are the process which occur without any external force.   a.…

Q: If H=-180kJ/mol and S=45J/k, then the reaction will be… a)      Spontaneous at all temperatures b)…

A: Reaction spontaneity ∆H ∆S reaction spontaneity + value - value non spontaneous at all…

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

A:

Q: Consider the following reaction at room temperature:                         Co(s) + Fe2+(aq, 1.94…

A: The above Nernst equation could be simplified as, Ecell=E°cell-0.0592VnlogQ

Q: Recovering aluminum directly from its ore, which is primarily aluminum oxide, involves the following…

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

A: The balanced reaction taking place is given as, => 2 H2S (g) + 3 O2 (g)  → 2 SO2 (g) + 2 H2O (g)…

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

A:

Q: Consider the oxidation of NO to NO₂: NO(g) + O2(g) → NO₂ (g) Standard thermodynamic quantities for…

A:

Q: Determine if each of the following processes is spontaneous or nonspontaneous. 1) water evaporating…

A: A spontaneous process is one that occurs without any external effort mainly because the reactants…

Q: If the Delta*H = 135kJ / m * ol and AS 92 J/K mol, at what temperature does this reaction become…

A:

Q: For the reaction of gaseous substances with increasing gaseous molecules (from reactant to product…

A: Given data    ∆H° = +150 KJ/mole and ∆S° = 171 J/K-mole.

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

A: The spontaneous nature of the reaction is determined by calculating the change of free energy of the…

Q: For the reaction H2(g) + S(s) --> H2S(g), ΔH° = -20.2 kJ/mol and ΔS° = +43.1 J/K·mol. Which of…

A: We know that the temperature in the Gibbs free energy equation is the Kelvin temperature. So when…

Q: 1. Predict whether the following processes are spontaneous, are spontaneous in the reverse or are in…

A: Spontaneous process is the process which takes its own.i.e process which doesn't required any…

Q: (2)Consider the following reaction at constant pressure. Use the information here to determine the…

A: 1. ∆Ssurr = -∆Hsys/T  2. ∆G = ∆H - T∆S

Q: 1. For the reaction C₂H6 (g) → C₂H4 (g) + H₂ (g) AH° is + 137 kJ/mol and AS° is + 120 J/K mol. Which…

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Q: Consider the following reaction; A(g) + B(s) c(g) + D(g); AH = -164.1 kJ; AG = -170.1 kJ at 298 K…

A:

Q: Which is true for the endothermic reaction 2 SO:(g) → 2 SO:(g) + O:(g)? A) Spontaneous at all T B)…

A: Choose the correct option---

Q: The element oxygen was prepared by Joseph Priestley in 1774 by heating mercury(II) oxide: HgO(s) →…

A: Given chemical equation:  HgO(s) ------> Hg(l) + 1/2O2(g) For a reaction to be spontaneous,…

Q: An exothermic reaction produces two moles of gas from one mole of solid reactant. Will the reaction…

A: Since you have asked a question with multiple questions, we are solving first question for you. For…

Q: For the reaction C2H6 (g) → C2H4 (g) + H2 (g), ∆Ho is + 137 kJ/mol and ∆So is 120J/mol.K. This…

A: The relation between entropy change, enthalpy change and free energy change can be shown from the…

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

A: We have to tell which option is correct from given choices of options.

Q: + H0 (8) (g) For the reaction CO - CO + H 2(8) 2(8) · calculate the following reaction's…

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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…

A: Answer:- This question is answered by using the simple concept of spontaneity of the reaction which…

Q: 17. For the reaction: A + B C AH°= +45 kJ/mol and AS° = +60 J/K.mol. At what temperature will this…

A: For the reaction: A + B  →C ∆H°= +45 kJ/mol ∆S° = +60 J/K.mol.  For a spontanseous reaction ∆G°<0…

Q: For a given reaction, ΔH = +31.15 kJ/mol and ΔS = +126.83 J/K · mol. Above what temperature is the…

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Q: The reaction, Fe203(s) + 3C(s) → 2Fe(s) + 3CO(g) AH° = +490.7 kJ, AS° = +541 J.K-1 This reaction is…

A: A particular reaction would be spontaneous, if the gibbs free energy change of the reaction becomes…

Q: At what temperatures will the following processes be spontaneous?    ΔH= -18 kJ and ΔS= 65 J/K

A: Given: the value of enthalpy change (∆H) = -18 KJ The value of entropy change (∆S) = 65 J/K For a…

Q: The following reaction is endothermic. 2NH3(g) → N2(g) + 3H2(g) This means the reaction   A.…

A:

Q: determine if the reaction is spontaneous or not. Pb + Sn+2→ Pb+2 + Sn

A: The given reaction is, The electrode potential of a redox reaction is the sum of the electrode…

Q: Which of the following is non-spontaneous? A. Rain falls from the sky B. A plant grows into a tree…

A: A cellphone battery is being recharged

Q: Under what conditions is N2 O3(g) ⟶ NO(g) + NO2(g) spontaneous?

A: to calculate spontaneity of reaction we have the formula ∆G°298 =∆H-T∆S° where, ∆H= change in…

Q: For a nonspontaneous reaction , AS° = 189 J/K, and AH° = 76.3 KJ. At what temperature this reaction…

A: ∆G° = ∆H° - T∆S°  ∆G°<0 for spontaneous reactions

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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Q: At what temperatures will a reaction be spontaneous if AH = +158 kJ and AS = +411 %3D %3D J/K? O The…

A: Given ΔH = 158 kJ = 158000 J ΔS =  411 J/K