Consider the decomposition of gaseous N2O4: N2O4(g) → 2 NO2(g) ΔH° = +57.1 kJ/mol; ΔS° = +175.8 J/mol K a) Is the reaction exothermic or endothermic? Briefly explain.

Q: 1.)     Consider the endothermic reaction 4HCl (aq) + MnO2 (s) Cl2 (g) + 2 H2O (l) + MnCl2 (aq),…

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

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Q: 2NO(g) + O2(g) → 2NO2(g); ΔH°= –125 kJ/mol; ΔS°= –150 J/mol•K   Below a temperature of _____ K, this…

A: The given reaction is: 2NO (g) + O2 (g) → 2NO2 (g) Given data, ∆H0 = -125 kJmol-1 ∆So = -150…

Q: Question 18 of 25 Which law states that the entropy of a perfect crystalline substance is zero at…

A: Answer  The entropy of perfect crystalline substance is zero at the…

Q: Which reaction is spontaneous at SATP?   ∆H=7.50 kJ, ∆S=42.9 J/K   ∆H=-11.5 kJ, ∆S=-52.6 J/K…

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Q: Which of the following reactions is/are spontaneous? a) Separation of N2 and O2 molecules in air…

A: Since you have posted multiple sub-parts, the answer for first three parts are given below. Kindly…

Q: about the Gibbs Free energy? Select one: a. It is positive for spontaneous reactions b. It has the…

A: 1) Gibbs energy is parameter to determine Spontaneity of process. So, correct statement is It the…

Q: 39 of 48 Which reaction is spontaneous at SATP? O AH=62.5 kJ, AS -1.25 J/K O AH--10.1 kJ, AS=-49.6…

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Q: What is the best explanation that ASfusion is smaller than ASvaporization? Entropy Curve Solid Liqud…

A: Entropy of a state is defined by disorder /randomness in molecule  More the randomness in molecule…

Q: 1. N2(g}+3H2(g) --->2NH3(g) If AH = -92.2kJ and AS= -0.1987KJ/K, what is AG for the reaction at…

A: The free energy change,ΔG can be calculated using the formula: ΔG = ΔH - TΔS ΔH = enthalpy change ΔS…

Q: a) image attached b) Calculate ΔG∘ at 296 ∘C c) tell whether the reaction has an equilibrium…

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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: For the gaseous equilibrium represented below, it is observed that greater amounts of PCl3 and Cl2…

A: Entropy is the measure of randomness of a system. More is the randomness , more is the entropy.

Q: At 1 atm pressure, CO2 sublimes at -78 degrees C. Is this process spontaneous at -100 degrees C and…

A: Given. At 1 atm pressure, CO2 sublimes at -78 degrees C.

Q: Which reaction is spontaneous at SATP? AH=41.5 kJ, AS=-12.9 J/K AH=8.75 kJ, AS=21.2 J/K AH=24.9 kJ,…

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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: Given: ΔH° = -20.2 kJ/mol  ΔS° = +43.1 J/K·mol   Chemical reaction: H2(g) + S(s) → H2S(g)

Q: Consider the following reaction: CaCO3 (s) CaO (s) + CO2 (g) ΔΗ = + 177.8 kJ According to Le…

A: According to Le Chatelier's principle, if the equilibrium is disturbed by any factor then the…

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

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Q: Which of the following processes are spontaneous:(a) the melting of ice cubes at -10 °C and 1 atm…

A: A spontaneous reaction is defined as a reaction that takes place on its own and no external energy…

Q: A chemical reaction is most likely to be spontaneous if it is accompanied by A. increasing energy B.…

A: Spontaneous reaction/process - The reaction which occurs on its own without the requirement of any…

Q: Use the following information for the following three questions. AH --524 kJ/mol AS- -250 J/K-mol D…

A: Given,  ∆H° =  -524 kJ/mol = 524000 J/mol ∆S° = -250 J/k.mol

Q: entropy change for the reaction 2 SO2(g) + O2(g) → 2 SO3(g)

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Q: Consider the reaction given below. H2(g) + F2(g) 2 HF(g) (a) Using thermodynamic data from…

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Q: 17. Classify the following processes as spontaneous or nonspontaneðus. Expl your answers in terms of…

A: "Since there are multiple sub-parts in this question and it is not mentioned that which one has to…

Q: Consider the reaction given below. H2(g) + F2(g) 2 HF(g) (a) Using thermodynamic data from the…

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Q: ) Are the following processes spontaneous or nonspontaneous? What is the sign on AG? a. Water…

A: The spontaneous reaction occurs without any external conditions whereas the nonspontaneous reaction…

Q: (a) Is an endothermic reaction more likely to be sponta-neous at higher temperatures or lower…

A: Since you have posted multiple questions, we will solve only one question for you. If you any…

Q: Vhich of the following statements is TRUE regarding the spontaneity of the exothermic reaction isted…

A: Q. Which of the following statements is True regarding the spontaneity of the exothermic reaction…

Q: Kyanite, sillimanite,and andalusite all havethe formula Al₂SiO₅.Each is stable under dif-ferent…

A: a)  All the three minerals are having equal free energy at equilibrium.   b)  Among the three…

Q: Which two of the following are spontaneous processes? (Circle only two): a) rusting of an iron nail…

A: A reaction which occurs without the input of energy is called a spontaneous reaction.

Q: Which of the following is true about entropy? (select all that apply) 1) Is a measure of the…

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Q: Coal can be converted to methane, a chief component of natural gas, according to the following…

A: To solve this problem we have calculate  ∆Gº and Kp for the given  reaction at 25ºC .

Q: For the decomposition of mercury(II) oxide, HgO, to mercury and oxygen:             2HgO(s)…

A: Solution : the standard Gibbs free energy of formation (Gf°) of Mercury (II) oxide is -58.6 KJ.mol-1…

Q: Predict whether each process is spontaneous as described, spontaneous in the reverse direction, or…

A: A reaction is spontaneous if ∆S is positive. Entropy (S) is the measure of degree of randomness.…

Q: waterand For the decomposition of hydrogen peroxide to H202(9) oxygen, → H20(g) + %02(g) AH = -106…

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Q: If a reaction is exothermic and its entropy change is positive, which statement is true? (a) The…

A: A chemical reaction in which heat is liberated is called an exothermic reaction. For an exothermic…

Q: What is the free energy change for the process shown here under the specified conditions? T = 25…

A: We know that ∆G = ∆G° + RTlnQ ..(1) Here, Q = pH2^3*pN2^1/pNH3^2 = (0.250)^3(0.870)/(12.9)^2 =…

Q: For a certain chemical reaction, ∆H° = -35.4 kJ and ∆S° = -85.5 J>K. Calculate ∆G° for the…

A: ∆H°=-35.4KJ         =-35400J∆S° =-85.5J/K  T  =298K

Q: The accompanying diagram shows how ΔG for a hypotheticalreaction changes as temperature changes. (a)…

A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you.…

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

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Q: Given the following reaction: 9C (s) + + 12H2 (g) + 3/2 O2 (g) → 3C3H7 OH (1) If the enthalpy change…

A: 1)if the change in enthalpy is negative then reaction is exothermic 2) if change in Gibbs free…

Q: At 298 K, ΔH° for this reaction is -137.5 kJ/mol, and ΔS° is +120.5 J/K. What is the value of ΔG°…

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

Q: Consider the reaction given below. H2(g) + F2(g)  2 HF(g) (a) Using thermodynamic data from the…

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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,…

A: Given that:  T = 25°C = 25°C + 273 = 298K  dHrxn = 29.8KJ/mol

Q: Calculate Kp for the following reaction at 500.0°C 3NO(g) N2​O(g)+NO2​(g) using the free-energy…

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Q: 8) a) Calculate AS°en for the following reaction given their respective standard molar entropy…

A: The standard entropy of the reaction can be calculated as follows-

Q: ∆Gº for the reaction, H2(g)+Br2(g)⇄2HBr(g), is -33.3 kJ. Which statement below is true?   To make…

A: Given that : For the reaction, H2(g)+Br2(g)⇄2HBr(g), ∆Gº = -33.3 kJ ∆Gº is Gibbs free energy change.

Q: Is the reaction spontaneous at all temperatures? If not, explain. Choose one: O The reaction will be…

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Q: The standard state Gibb's energy and entropy changes are known for the reaction: 2H,S(g) + 30,(g)…

A: Formula  ΔG° = ΔH° - TΔS° - 120 x 103 = ΔH° - 298 x 52  ΔH° = -120000 + 15496 = - 104504 J/mol ΔH° =…