Consider the following reaction: 2 O3(g)  →  3 O2(g)    ΔS∘∘ = 137.4 J/K;  ΔH∘∘ = −285.4 kJ Calculate ΔG∘∘ at 55°C and determine whether the reaction is spontaneous or nonspontaneous.    a) 330.5 kJ, spontaneous            b) 4.54 × 105 kJ, spontaneo

Q: If ΔHΔHDH = -70.0 kJkJ and ΔSΔSDS = -0.200 kJ/KkJ/K , the reaction is spontaneous below a certain…

A: In this question we want to determine the temperature ( below this Temperature Reaction is…

Q: 2NH3(g) N2(g) + 3H2(g) If AH = -92.2 kJ and AS = -0.1987 kJ/K, what is AG for the reaction at 475°C…

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

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: Calculate ΔG° using (a) free energies of formation and (b) enthalpies of formation and entropies. Do…

A: Gibbs free energy change is used to determine the spontaneity of a process. It is expressed in terms…

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: For a particular reaction, AH = 20.1 kJ and AS = 45.9 J/K. Assuming these values change very little…

A: Applying concept of spontaneity and formula ∆S=∆H /T

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: Of the following, which system shows a decrease in entropy? A CHJOH (ACH3OH (g) B. NaCI (s- Na (ag)…

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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: For each reaction, calculate AHn, ASn , and AGn at 25 °C and state whether or not rxn rxn the…

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Q: 1. Classify the following processes as "Spontaneous" or "Non-spontaneous": (i) (ii) (iii) (iv) (v)…

A: Spontaneous process is the type of  random process is one that takes place alone and has no external…

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: 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: 2. Calculate the temperature in which the following reactions become spontaneous. b) Reaction B: AH…

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Q: What is the ∆G° if ∆H° is +42.7 kJ and ∆S° is +88 J/K? (SHOW CALCULATIONS) b) Is it spontaneous?…

A: ∆H°=+42.7kJ =42.7 × 1000 = 42700joule ∆S°= +88J/K ∆G°=?

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

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Q: 2 ClO2 (g)   +  2 TiCl4 (l)    →     2 TiO2 (s)   +   5 Cl2 (g)         Delta H =  – 343.8 kJ when…

A: Please have a look on the solutiion:

Q: (C2H5OH ) +(H2) →(CH3CHO) (AS = 114.2 J/K),(AH = 68.95 KJ/K ) %3D Calculate AG for this reaction at…

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

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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: 5. Which of the following are factors that determine whether a reaction is spontaneous or…

A: Any process is called spontaneous if there is not any output force is applied during the process or…

Q: For a chemical reaction to be spontaneous at all temperatures in the reverse direction, which of the…

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Q: For a reaction, Delta H = -145 kJ and Delta S = 220 J. Is the reaction spontaneous? O Always O At…

A: We know ; ∆G = ∆H - T∆S When the Value of ∆G is negative , then the Reaction is spontaneous . &…

Q: What is the type of entropy change for N2 (g, 10 atm) —> N2 (g, 1atm)? provide description.

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Q: For each reaction, calculate AHan ASn and AGan at 25 "C and state whether or not the reaction is…

A: Standard heat of formation of N2O4 (ΔHfo) = 9.16 KJ/mol. Standard heat of formation of NO2 (ΔHfo) =…

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: For a particular reaction, ΔH∘=20.1 kJ and ΔS∘=45.9 J/K. Assuming these values change very little…

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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: 3. The standard free energy change at room temperature may be calculated as   A,…

A: Given  A, ΔG°=∑νΔG°(products)−∑νΔG°(reactants)   B, ΔG°=∑νΔG°(reactants)−∑νΔG°(products)   C,…

Q: Indicate whether the following processes are spontaneous or nonspontaneous.(a) Liquid water freezing…

A: Spontaneous reactions are those reactions which takes place without any intervention in the given…

Q: Methanol is burned as fuel in some race cars. This makes it clear that the reaction is spontaneous…

A: According to the second law of thermodynamics, the free energy change of the spontaneous process is…

Q: Consider the following reaction.  Use the information here to determine the value of ΔSsurr at 355…

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Q: 2. Define and give an example: Spontaneous, exergonic 3. Define and give an example:…

A: These all are the terms related with chemical thermodynamics. There are many reactions which occur…

Q: For the reaction below, calculate the value of the temperature at which the reaction becomes…

A: Given reaction: 4 Ca3PO4 (s)  +   3 O2 (g)    →    12 CaO (s)   +   P4O10 (s)  ∆H = +5946.8  ∆G =…

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: 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: For a particular reaction, AH° = 67.7 kJ and AS° = 126.9 J/K. Assuming these values change very…

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Q: Predict which member of each of the following pairs has the greater standard entropy at 25 °C25 °C:…

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

Q: For a particular reaction, AH = -46.7 kJ and AS =-123.8 J/K. Assuming these values change very…

A: ∆H°=-46.7KJ ∆S°=-123.8J/K ∆H°-T∆S°=0

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

A: The following processes are spontaneous, and which are (a) the ripening of a banana, (b)…

Q: For a particular chemical reaction, ΔH = 4.3 kJ and ΔS = –19 J/K. Under what temperature condition…

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Q: Given the following reaction: 2NO(g) + Cl2(g) 2NOCl(g) DHorxn = -75.5kJ 1. Is the reaction…

A: The reaction taking place is given as, => 2 NO (g) + Cl2 (g) -------> 2 NOCl (g)…

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: Consider the reaction for the decompositon of carbon tetrachloride gas: CCl4(g) ⟶ C(s, graphite) + 2…

A: For the given reaction,△H = +95.7 kJ = 95700 J    (1 kJ = 1000 J)△S = +142.2 J/KTemperature, T = 25…

Q: 6. For each reaction below, determine the sign of AH and AS. Also state under what conditions the…

A: The spontaneity of any reaction is known with the help of sign of ΔH and ΔS. ΔG=ΔH-T ΔSSpontaneous…

Q: Consider the reaction for the decomposition of carbon tetrachloride gas:CCl4(g)¡C(s, graphite) + 2…

A: (a) The given reaction is, CCl4g→Cs,graphite+2Cl2g ∆H=+95.7 kJ∆S=+142.2 J/KT=25°C=25+273K=298 K

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: An endothermic reaction proceeds spontaneously. What can you deduce about the sign of Delta S for…

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

Q: Methanol, CH3OH , is formed from methane and water in a two‑step process. Step 1:…

A: