For a given reaction, ΔH=−19.9kJ/mol and ΔS=−77.0J/K⋅mol. The reaction will have ΔG=0 at ________ K. Assume that ΔH and ΔS do not vary with temperature. A. 298 B. 3.87 C. 0.258 D. 258 E. 3869

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…

Q: A. Which of the following statements is false: i) An exothermic reaction is always spontaneous ii)…

A: A)  The entropy of the universe is always increasing and Temperature can affect the solubility…

Q: Consider the reaction 2 NO2(g)  N2O4(g) . (a) Using Gf N2O4(g) = 97.79 kJ/mol and Gf NO2(g) = 51.3…

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Q: The value of Keq for the following reaction is 0.30: A (g) + B (g) ⇌⇌ C (g) + D (g) The value of…

A: The value of Keq for the reaction Ag + B(g) ⇌          C(g) + D(g)  is:  0.30 We need to find the…

Q: By is an exothermic reaction. 1) Ag) Analyze when this reaction is spontaneous (i.e. spontaneous at…

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Q: Read the descriptions of physical or chemical changes in the table below. Then decide whether the…

A: For a process to be spontaneous ΔG should be negative. and ΔG=ΔH-TΔS For exothermic reaction ΔH is…

Q: A chemical reaction is always spontaneous if it is accompanied by Oa. endothermic and increasing…

A: When reaction is endothermic then it's required energy from the external sources then it's converted…

Q: Aluminum forms a layer of aluminum oxide when exposed to air which protects the bulk metal from…

A: Thermodynamics is the branch of chemistry that mainly deals with the heat transfer between system…

Q: For the reaction N2(g) + 3 H2(g) = 2 NH3(g), what is AG (in kJ) at 298 K when the pressures of the…

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Q: 1. What is spontaneous reaction and nonspontaneous reaction? Define each. 2. Indicate whether the…

A: The answer of the question is----------- The spontaneous reaction is a reaction that goes towards…

Q: Consider the reaction: CO2( g) + CCl4( g)<------>2 COCl2( g)Calculate ΔG for this reaction at…

A: The change in Gibbs free energy is calculated using the following expression.…

Q: Energy > The image below shows two confgurations of a system of 4 particles. Energy levels increase…

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Q: Consider the reaction:CH3OH( g)<--------->CO( g) + 2 H2( g)Calculate ΔG for this reaction at…

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Q: Consider acetylene  a) write a balanced chemical equation for the combustion of 1 mole of acetylene…

A: Note: As per the question answer guidelines we are supposed to answer first three subparts in case…

Q: A reaction has the following thermochemical values at 272.15 K: ΔH = -189.3 kJ mol-1 ΔS = -166.0 J…

A: Given-> Temperature (T) = 272.15 K ∆H = -189.3 kJ.mole-1 = -189300 J.mole-1(1KJ=1000J) ∆S =…

Q: system AG and the entropy of the universeAS, universe and plot it on two graphs. Which one of the…

A: Applying concept of spontaneity of ∆G and ∆S.

Q: Read the descriptions of physical or chemical changes in the table below. Then decide whether the…

A: Any reaction is considered to be spontaneous only when there is increase in randomness of molecules.…

Q: 1. The entropy will usually increase when I. a molecule is broken into two or more smaller…

A: Since you have posted more than one question, we will solve only first question for you. If you want…

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: Calculate the ΔH for the reaction: Na2O (s) + SO3 (g) -->  Na2SO4 (g) ΔH

A: Target equation :- Na2O (s) + SO3 (g) -->  Na2SO4 (g)…

Q: 18. A reaction has AH° = +38.7 kJ/mole, AS° = 112 J/mol K, and AG° = +5.32 kJ/mole. Complete the…

A: Given : ΔHo = 38.7 KJ/mol = 38700                                              ( Since 1 KJ = 1000…

Q: Read the descriptions of physical or chemical changes in the table below. Then decide whether the…

A: Spontaneous reaction : A reaction is called spontaneous, if the product formation occurs in a given…

Q: 12) Above what temperature does the following reaction become nonspontaneous? 2 H2S(g) + 3 O2(g) → 2…

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Q: Consider the reaction 2 NO2(g)  N2O4(g) . (a) Using Gf N2O4(g) = 97.79 kJ/mol and Gf NO2(g) = 51.3…

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Q: Which process will result in an increase in entropy: a.) 2NO2(g) ---> N2O4(g) b.) H₂O(l)---> H₂O(s)…

A: Since, Entropy is a thermodynamic quantity. It measure the randomness. If randomness is more then…

Q: 1. Consider the freezing of liquid water at - 10°C and 1 atm. For this process, what are the signs…

A: Freezing of water at -10℃ and 1 atm, H2O (l) ⇌ H2O (s)

Q: I.     NaCl (s) ⇌ Na+ (aq) + Cl- (aq)                 ΔG  0     III.   Ag(CN)2-(aq) ⇌ Ag+(aq) +…

A: All spontaneous process leads to increase in entropy and a process is spontaneous if ∆G<0

Q: Consider this reaction at 25°C: 2H2S(g)+SO2(g)--->3S+2H2O Calculate the DGrxn when Ph2s=2.99 atm;…

A: From the given reaction: 2H2S(g)+SO2(g)→3S(s)+2H2O(g) Gibbs energy for the species are- DG°[S(s)] =…

Q: Read the descriptions of physical or chemical changes in the table below. Then decide whether the…

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Q: Consider the following reaction: 2 Al(s) + 6 HCl(g) 2 AlCl3(s) + 3 H2(g) H° = −150.4 kJ/mol For…

A: We are given the following reaction: 2 Al(s) + 6 HCl(g) ---------> 2 AlCl3(s) + 3 H2(g) ∆H° =…

Q: for this reaction: H2O(g) →  H2O(l) → (gets hot, s

A: When water changes its states from gas to liquid there is a change in states of water from gaseous…

Q: Calculate ∆G for the reaction given below if the partial pressure of NO2 is 0.212 atm and the…

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Q: 10.43 Which reaction occurs with the greater increase in entropy? Explain yo (b) Br,(g) + Cl,(g)→ 2…

A: 10.43 has been solved. For 10.47 b, more data is needed from the table.  Entropy is the measure of…

Q: Calculate ∆G

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Q: Determine the AH (AH ) for the reaction CH,(g) + 20, (g) → 2H,0(g) + CO,(g) Given: Substance AH? mol…

A: Answer is explained below.

Q: The decomposition of calcium carbonate is given by the reaction, CaCO3(s) → CaO(s) + CO2(g).…

A: (a)The reaction for the decomposition of one mole of calcium carbonate is obtained by reversing the…

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: Consider the reaction 2 NO2(g)  N2O4(g) . (a) Using Gf N2O4(g) = 97.79 kJ/mol and Gf NO2(g) = 51.3…

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Q: 1. Iron(II) oxide (FeO) is used in cosmetics and in tattoo inks as a dye. Iron(II) oxide reacts with…

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Q: Which reaction does NOT occur? O a. C,H,COCI + CH,NH, C,H,CONHCH, + HCI O b. CH,COOH + CgH,OH…

A: (a.) C6H5COCl + CH3NH2 → C6H5CONHCH3 + HCl So, it occurs. (b.)  CH3COOH + C6H5OH → CH3COOC6H5 +…

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: Consider the reaction 2NO 2( g) --> N 2O 4( g); Δ H° = –56.8 kJ and Δ S° = –175 J/K. In a container…

A: The question is based on the concept of chemical thermodynamics. we have to predict the position of…

Q: "hich process is accompanied by an increase in entropy? elect one: O a. setting up a stack of…

A: Entropy is defined as the degree of randomness or disorderliness of the System. if the molecules of…

Q: Starting from Gibbs free energy get the mathematical equation for the equilibrium temperature.

A: Gibbs free energy gives an idea about whether the reaction is spontaneous or not. There are three…

Q: Under normal room conditions (standard pressure at about 20°C), water will not boil, so we do not…

A: Spontaneous process: A process which releases energy.  It means change in free energy must be in…

Q: For the reaction 2NO(g) + 2H2(g) N2(g) + 2H2O(1) AH° = -752 kJ and AS° = -352 J/K %3D !3! AG° would…

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Q: 2. ΔG0 for the reaction N2 (g) + 3H2 (g) ⇌ 2NH3 (g) is -33.3 kJ. Calculate ΔG at 298 K for a…

A: The equilibrium constant in terms of partial pressures is calculated,

Q: Using the thermodynamic data provided below, calculate the standard change in entropy when one mole…

A: Since you have posted multiple questions, we are entitled to answer the first only. 1) The…

Q: What is a spontaneous process?  A. is reversible.  B. Is irreversible  C. may be reversible or…

A: Entropy is a measure of randomness  ∆S = Ssystem + Ssurrounding = ( for reversible process) ∆S =…

Q: 10.43 Which reaction occurs with the greater increase in entropy? Explain your reasoning (a) 2 NO(g)…

A: In nature, every processes have an inclination to progress to a state of larger randomness. The…