Calculate the temperature (in oC) above which the following standard reaction is spontaneous.                      Fe3O4(s)     +     2 C(graphite)     →     3 Fe(s)     +     2 CO2(g)               ΔHo  =  331 kJ   and   ΔSo  =  352 J/K for this reaction. 155 oC 234 oC 790 oC 667 oC 492 oC 31 oC

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: 50. For the process O2(g) → 2 O(g), AH° = +498 kJ. What would be predicted for the sign of ASrxn and…

A: 50. The given process has a positive sign for enthalpy change. Hence, the process will be an…

Q: Q1.) For a certain chemical reaction, ΔH∘ = - 35.4 kJ and ΔS∘ = - 88.0 J/K 1. Exothermic or…

A: Answer 1: Exothermic or Endothermic? ΔH∘, represent heat content of the system which is expressed by…

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

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: Consider the process of water boiling in a beaker that is open to the atmosphere. Which of the…

A: In the given question, we are boiling water in a beaker and then have to see its thermodynamic…

Q: For a particular chemical reaction DH = 6.8 kJ and DS = –29 J/K. Under what temperature condition is…

A: Gibbs Helmholtz Equation: Is the equation denoted by,…

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

A: 2 NO2(g) ---> N2O4(g) This Reaction is exothermic (at constant pressure ). The reaction is…

Q: Calculate ΔG°rxn (in kJ) for a reaction where ΔH°= +63 kJ, ΔS°= +675 J/K, and T = 298 K

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Q: Which of the following reactions correctly depict reactants and products in the correct state to…

A: In the reaction, states of matter was written as a subscript to the molecules which takes part in…

Q: For the combustion of CO(g): 2CO(g) + 02(g) 2CO2(8) the reaction is spontaneous at 25 °C. What can…

A: First, calculate the standard enthalpy of the reaction as follows: ∆H° = 2∆H°CO2(g) -  2∆H°CO(g)+…

Q: Pure crystalline silicon, Si (s), can be obtained by reacting silicon dioxide (in the crystalline…

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

Q: A certain reaction has a positive value of enthalpy change. Which of the following statements is/are…

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Q: Consider the thermodynamic data for the following reaction which is used to produce hydrogen. Which…

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

A: CONCEPT: For an exothermic reaction, ΔH0 is negative. For a spontaneous reaction, ΔG0 is negative.…

Q: A student studies a reaction under various conditions and determines that it is exothermic and…

A: Sign of ∆H and ∆S can be determined from given information about reaction and its sponateity…

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: “Thermite” reactions have been used for welding metal parts such as railway rails and in metal…

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Q: The Internal energy of a system will always be negative if work is done by the system and heat is…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: 10. A chemical reaction at the standard state has the enthalpy of reaction: A,H° = +117 kJ and the…

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Q: Which of the following statements correctly describe the second law of thermodynamics? I. Heat will…

A: Second  law of thermodynamics

Q: Calculate the standard entropy change for the following reaction. 4 Al(s) + 3 02(g) → 2 Al,O3(s) JK!

A: A numerical problem based on entropy change, which is to be accomplished.

Q: Determine the Spontaneity of the reaction ΔH⁰ = -750 kJ and ΔS⁰ = 250 J/K

A: Spontaneous reaction - The reaction that favours formation of product under given conditions. This…

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

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Q: Calculate the temperature at which the reaction changes from a spontaneous to non-spontaneous…

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Q: Above what temperature does the following reaction become nonspontaneous?         2 H2S(g) + 3…

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Q: Consider the following reaction: CH3OH(g) --> HCHO(g) + H2(g); DHo = 85 kJ (2)…

A: As this reaction is endothermic in nature as Del H is positive

Q: Gibbs free energy in chemistry is symbolized G. It is related to the enthalpy (H) and entropy (S)…

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Q: From the data in Appendix J of your text, calculate ΔGorxn, ΔHorxn, and ΔSorxn for the following…

A: Given: Reaction and data table To find: ∆Gorxn, ∆Horxn, ∆Sorxn, whether the reaction is spontaneous…

Q: glass of water at room temperature i 1st Law of Thermodynamics Zeroth Law of Thermodynamics

A: The total energy of glass water remains the same which means there is no exchange of energy or…

Q: Indicate whether the following statements are true or false: v A reaction that is spontaneous in the…

A: Given that

Q: For the following reaction: SO2 (g)_± ½ O2(g)→ SO3(g) For this reaction to be spontaneous, what must…

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Q: N2(g) + O2(g)⟶2NO(g)        ΔH = 180.5kJ NO(g) + 1O2(g)⟶NO2(g)ΔH = −57.06kJ 2   Calculate the ΔH…

A: Given data N2(g) + O2(g)⟶2NO(g);        ΔH1 = 180.5 kJ --------------------equ (1)  NO(g) +…

Q: When crystalline solid barium hydroxide octahydrate and crystalline solid ammonium nitrate are…

A: Recall the following relation     ∆G=∆H-T∆SFor any spontaneous process, ∆G<0  and for exothermic…

Q: A certain reaction has ΔH∘ = + 35.8 kJ and ΔS∘ = 85.5 J/K. 1. exothermic or endothermic? 2. Does…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: Calculate the Gibbs free energy change (∆GRXN) in kJ that occurs when one mole of solid iron (III)…

A: Given unbalanced reaction is : Fe (s) + H2O (g) --> Fe2O3 (s) + H2 (g) Calculate the Gibbs free…

Q: Which of the following sets of conditions is true for an exothermic reaction that is spontaneous at…

A: Enthalpy, entropy both of these two factors determine the fate of reaction. The reaction either…

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

A: We have to tell which option is correct

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

A: Since you have posted a question with multiple subparts, we will solve only first three subparts for…

Q: The standard enthalpy change and standard entropy change for the reaction are AH =-660 2 kJ mol"'…

A: As per our guidelines we can only solve first question. Please resubmit other questions as next…

Q: Suppose that a reaction has AH = -28 kJ and AS= -60 J/K. At what temperature will it change from…

A: We have to predict the temperature.

Q: - Which combination of enthalpy and entropy will never result in a spontaneous reaction? a) ДН > 0…

A: A spontaneous reaction is the reaction that occurs by itself without any energy input from the…

Q: Consider each of the following reactions and decide whether the standard entropy change for the…

A: Since you have posted question with multiple subparts so as per guidelines we can not answer more…

Q: Consider each of the following reactions and decide whether the standard entropy change for the…

A: As per guidelines if multi-part questions posted, first three are allowed to answer, please repost…

Q: Which one of the following reactions cannot proceed spontaneously as written at any temperature?…

A: Normally for those thermochemical Reactions in which the value of Gibb's free value is negative, are…

Q: At what temperature will a reaction become spontaneous given: Entropy change = 170 J/K enthalpy…

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Q: Calculate ΔH° for the process Sb(s) + 52Cl2(g) ⟶ SbCl5(s) from the following information: Sb(s)…

A: According to the Hess’s law of Constant heat Summation, regardless of the number of steps or stages…

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

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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: Calculate the free energy change for the formation of one mole of ammonia from its elements under…

A: The formula that can be used in the solution is : ΔG° = ΔG°f(products) - ΔG°f(reactant)