For a particular reaction, ΔH = -32 kJ and ΔS = -98 J/K.Assume that ΔH and ΔS do not vary with temperature.(a) At what temperature will the reaction have ΔG = 0?(b) If T is increased from that in part (a), will the reactionbe spontaneous or nonspontaneous?

Q: A chemical reaction has a standard entropy change, ΔSo, of -287.8 J/(molK) and a standard enthalpy…

A: The given data you have - ΔSo = -287.8 J/K-mol ΔHo =  -138.1 kJ/mol

Q: che standard entropy change to c

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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: Given ΔHrxn∘= −135 kJ, ΔS∘rxn= −263 J/K, and T= 550 K, will the reaction be spontaneous or…

A: Solution :     The change in Gibbs free energy calculated by the change in entropy, temperature, and…

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: 14 For a process with AH 0 ΟΔΕ >0 O AS > 0 O Never. 20 The standard enthalpy of reaction, AHf pen,…

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Q: 6. A reaction has a AH° of -29 kJ and AS° is -60. J/K. Calculate the temperatu from spontaneous to…

A: Spontaneous reactions are those reactions which proceed on their own without any external force.…

Q: Does someone know the standard entropy values in J/K for H2(g), F2(g) and HF(g)?

A: The standard entropy values of hydrogen and fluorine gases are 130.6 J/Kmol and 202.8 J/Kmol…

Q: Calculate ΔG° for a reaction for which ΔH° = 24.6 kJ andΔS ° = 132 J/K at 298 K. Is the reaction…

A: Given, ΔH° = 24.6 kJ ΔS ° = 132 J/K

Q: At 25°C, a reaction undergoes an enthalpy change of −27.0 kJ mol^−1 and an entropy change of 27.0 J…

A: Enthalpy change (∆H) = -27.0 KJ mol-1 ...Or because 1KJ = 1000 J    .....so, -27.0 KJ mol-1 × (1000…

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: Predict the sign of delta H and delta S for the reaction X(s) = X(g) and state under what conditions…

A: As solid  X is transformed into gaseous species. thus in this reaction entropy increases as the…

Q: 3. (2) Does the entropy of the surroundings always increase for spontaneous processes? Explain. (b)…

A: The entropy is a measure of randomness of a system. In a spontaneous process, the entropy of the…

Q: Above what temperature (in ºC) does the reaction with H' of 192 kJ/mol and S’ of 622 J/mol·K become…

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Q: The following reaction for the formation of glucose from carbon dioxide and water:…

A: The given reaction is,

Q: Calculate ΔG° for a reaction for which ΔH°= 20 kJ and ΔS° = 140 J/K at 298 K. Is the reaction…

A: Given  ΔH°= 20 kJ  1 kJ =1000 J ΔH°= 20,000 J ΔS° = 140 J/K T = 298 K  ΔG° = To be determined

Q: 5.2 c  The diagram on the far left in the row showsa system before a process. Which of thediagrams…

A: According to first law of thermodynamics, the internal energy change of the system is equal to the…

Q: Predict the sign of ∆S for physical and chemical processes?

A: Solution :    Entropy is a thermodynamic property that is a quantitative measure of the randomness…

Q: The reaction for which AH° = – 1137 kJ & AS°=0.496 kJ/K at 45° C will go spontaneously.

A: From given data  ∆H°= -1137 kJ ∆S°= 0.496 kJ/K T= 45°C= 273 +45 =318 K  Formula used  ∆G°=∆H°-T∆S°…

Q: If a particular reaction has   ΔrH = +30 kJ mol–1    and    ΔrS = –60 J K–1mol–1, when do you expect…

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Q: 4.) Which statement is correct at constant temperature and pressure? A. All reactions for which…

A: Spontaneity of any system is decided by the value of ΔGsys.

Q: (Q77) The standard Gibbs free energy (AG°rxn) for the formation of sulfur trioxide from sulfur…

A:

Q: 8. A reaction has AH° = 100 kJ/mol and AS°=250 J/mol-K. Is the reaction spontaneous at room…

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Q: Q2.) For a particular reaction, ΔH = -32 kJ and ΔS = -90 J/K . Assume that ΔH and ΔS do not vary…

A: Given : ΔH = -32 kJ  ΔS = -90 J/K 1) To calculate Temperature at which  ΔG=0  ΔG = ΔH  - TΔS ΔG=0…

Q: 1. What thermodynamie quantity is used to determine whether a chemical reaction will proceed…

A: When a reaction proceed on its own without any external aid, it is called spontaneous reaction.

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

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Q: 7) Calculate AG for a reaction at 85 °C if AH is -34.6 kJ and AS is -114 J/K. Is the reaction…

A: Given ΔH = -34.6 kJ ΔS = -114 J/K T = 85°C

Q: [1] Given: CH,(g) + H2O(g) CO(g) + 3H2(g). AH° for the reaction is +206.1 kJ/mol, while AS° is +215…

A: Note : Since you have posted multiple questions, we are entitled to answer the first only. Please…

Q: Consider the reaction:  4 A (g) ------  2 B (s) +  3 C (g) + 20.5 kJ,    at what…

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Q: For chemical reactions, the change in Gibbs free energy [at 298 K, 1at., ∆G°] determines whether a…

A: The given thermochemical equation is: C(s) + O2 (g) -----> CO2 (g) ;  ∆Go = - 394 kJ For the…

Q: Given the reaction: NaOH(s) + H,O() ? Na+(aq) + OH-(aq) + 10.6 kJ, the heat of reaction, AH, is…

A: Given: Reaction is as follows: NaOH + H2O  ----->   Na+  +  OH-  + 10.6 KJ This is an exothermic…

Q: enumerate at least three examples each for a spontaneous reaction and a nonspontaneous reaction

A: A spontaneous reaction is a reaction which occurs without the help of an external force or energy.…

Q: 2. SO2(g) + O2(g), AH°25°C = +99.2 kJ and AS°25°C = +93.94 J/K. Is the reaction spontaneous at 25°C?…

A: The question is based on the concept of spontaneity of the reaction. if Gibbs free energy change of…

Q: For the reaction, A + B C, AH° = -40 kJ, and AS° = +80 J/K. Which of the following statements is…

A: Given: ∆H°=-40 kJ ∆S°=+80 J/K

Q: Is the formation of ozone (O3(g)) from oxygen (O2(g)) spontaneous at room temperature under standard…

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

Q: Calculate ∆G° for a reaction for which ∆H° = 24.6 kJ and ∆S° = 132 J/K at 298 K. Is the reaction…

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Q: Which of the following processes are spontaneous and which are nonspontaneous: (a) the ripening of a…

A: Spontaneous process The process that can take place without the assistance of any external factor is…

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

A:

Q: 4. The entropy change for the process H2O(s) → H2O(1) is 22.1 J/K and requires that that…

A: Given:  ∆Ssystem = 22.1 J/K  qsystem = -qsurrounding = 6.0 KJ = 6000 J  Temperature (T) = 10°C = 283…

Q: 4. Arrange the following substances (1mole each) in order of increasing entropy at 25°C; (a)Neg) (b)…

A: A question based on increasing entropy of different substances, which is to be accomplished.

Q: 5-For the reaction, A+B C, AH-+30 kJ; AS°=+50 J/K.Therefore the reaction is: (a) spontaneous at all…

A: ∆Hf°is the standard enthalpy change when one mole of a substance is produced from its constituent…

Q: For the reaction given below, AH--1516 kJ at 25 C and AS--432.8 J/K at 25 C, This reaction is…

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Q: The normal freezing point of n-octane (C8H18) is -57 °C.(a) Is the freezing of n-octane an…

A: Given that the freezing point of n-octane is -57 oC.

Q: 9) For which set of values of AH and AS• will a reaction be non-spontaneous at 25°C? a) AH• = -10…

A: Multiple question

Q: Arrange Au(s), Al(s), and C(s) in order of increasing entropy. Assume the three solids are at the…

A: The correct order of entropy is given below

Q: (Q77) The standard Gibbs free energy (AG°rxn) for the formation of sulfur trioxide from sulfur…

A:

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

A: The Gibbs free energy change for a reaction is negative for a spontaneous reaction and is zero for a…

Q: . Chloroform, CHC13, has a normal boiling point of 61 °C and it enthalpy of vaporization is 29.24…

A: Formula used:- ∆G°=∆H°-T∆S° But in this condition ∆G° = 0  Thus new formula is ∆S° = ∆H°/T

Q: 1. From the values of AH and AS, predict which of the following reactions would be spontaneous at…

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