Calculate the ΔSsurr in kJ/K for the following reaction at 50°C. 4 NH3 (g) + 5 O2 (g) → 4 NO (g) + 6 H2O (g)      ΔH°rxn = -906 kJ ΔSsurr=−ΔHsys/T DO NOT include the units with your answer.

Q: a) H2(g)→ 2H(g) b) N2 (g. 1 atm) → N, (g, 8 atm) C) 2SO3(g) → 2SO,(g) + O2(g) d) C (Diamond) → C…

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Q: The Keq of a reaction is exactly 1. This means... *

A: Answer: neither reactants nor products are favored (over the other) Explanation: Consider the…

Q: Calculate the change in the Gibbs free energy (ΔGorxn) in J for the decomposition of carbon…

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Q: Which of the following samples of substances is likely to have the largest entropy? 1 mol KCI(aq) 1…

A: The gas phase has highest entropy followed by liquid. Solids have lowest entropy.

Q: Calculate the enthalpy change for the reaction 2K+S → K₂S using the following thermochemical…

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Q: The U.S. requires automobile fuels to contain a renewable component. The fermentation of glucose…

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Q: An ice cube at 0 Celcius melts when placed inside a room at 22 Celcius. Based on the concepts of…

A: Melting of ice requires energy to melt. So it is an endothermic process. The process in which energy…

Q: Two systems, each composed of two particles represented by circles, have 20 J of total energy. Which…

A: The system which has greater entropy has to be given and the reason has to be explained.

Q: 6.Sodium reacts violently with water according to the equation: 2 Na(s) + 2 H2O(l) → 2 NaOH(aq) +…

A: Now as the temperature of the water is higher, it signifies that the reaction was endothermic and…

Q: Without doing any calculations, determine the sign of AS and ASu for each chemical reaction. In…

A: Entropy is a unit of randomness.More the number of moles,more will be the entropy.Change in entropy…

Q: he Keq of a reaction is 4 x 10⁻⁷. At equilibrium, the... * reactants are favored…

A: The value of the equilibrium tells us whether the reactants are favored or the products are…

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: The ∆H and ∆S for the decomposition of sulfur tetrabromide to sulfur and liquid bromine is +115 kJ…

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Q: 6.) The diagram below shows the deposition of iodine vapor at room temperature. Which statement is…

A: The ordered system is the indication of low entropy. While less orderliness is the indication of an…

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: Calculate the value of the free energy change, ΔG, for the reaction below at 227.0ºC when the…

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

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Q: Which reaction is most likely to have a decrease in entropy? O NaCl(s) → Na*(aq) + Cl(aq) O 2 NH3(g)…

A: When the reaction shows the positive entropy change then the reaction is spontaneous.

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 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: 5. Sodium acetate dissolves in water according to the following equation: NAC2H3O2 (s) Nat (ag) +…

A: Given process is :  NaC2H3O2 (s) -----> Na+(aq) +C2H3O2-(aq)

Q: A box contains a gas composed of 12 atoms each corresponding to the different stable isotopes of Tin…

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

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Q: You are working in a lab and observing a reaction. If a reaction vessel is cold to touch and the…

A: A question about thermodynamics, which is to be accomplished.

Q: At what temperature would you expect a reaction to become spontaneous that has ΔH=234 kJ and ΔS=234…

A: Given that, for a given reaction, the enthalpy changes and entropy changes as follows --- Enthalpy…

Q: Which of the following would be expected to have positive entropy change?   Cooling of nitrogen…

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Q: III of thermodynamics. Explain your law.

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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 oxidation of iron to form iron(III) oxide: 4Fe(s) + 3O2(g) ⟷⟷ 2Fe2O3(s)…

A: ΔSo = –549.73 J∙K–1 T = 298K ΔH = –824.2 kJ∙mol–1 = -824200 Jmol-1

Q: For the reaction at 298 K, the values of H and S are 58.03 kJ and 176.6 J/K, respectively. What is…

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Q: For the reaction below ∆G° = + 33.0 kJ, ∆H° = + 92.2 kJ, and ∆S° = + 198.7 J/K. Estimate the…

A: We wil use the Gibbs helmholtz equation to calculate the temperature when ∆G is zero. And above this…

Q: Suppose that two systems, each composed of two particles rep- resented by circles, have 20 J of…

A: Entropy is a measure of the extent of energy dispersal, and it rises with the number of comparable…

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: Which of the following processes results in the largest decrease in Entropy? The heat of fusion of…

A: Entropy an be defined as the thermal energy per unit temperature that is unavailable for doing a…

Q: For a particular reaction, Δ?∘=67.7 kJ/mol and Δ?∘=126.9 J/(mol⋅K). Assuming these values change…

A: Given : ΔHo of reaction = 67.7 KJ/mol = 67700 J/mol…

Q: Without doing any calculations, match the following thermodynamic properties with their appropriate…

A: ∆S universe=0  ∆Grxn.  negative at higher temperatures, positive at lower temperatures

Q: 9. Which of the following statements best describes the entropy of water that freezes in a beaker?…

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Q: Which of the following processes is both exothermic (at 1 atm) and spontaneous? A) Sublimation of…

A: The process which is both exothermic and spontaneous is condensation of water at 99.5°C.

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

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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: Which of the following substances is likely to have the highest entropy? Link to Physical Constants…

A: The substances given are He, H2, CO2, N2 and H2O (l).

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

A: Calculation of QP: QP=PN2×PH23PNH32=0.870×0.250312.92=0.000327

Q: 10. Use the data: AGº (CO) = -137.2 kJ, AGº (C) = 0 kJ, AGº (O₂) = 0 kJ, to find K at 298 K for the…

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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: If a process is exothermic and not spontaneous, then what must not be true? a) AG>0 b) AH0 d) AS<0

A: For exothermic process, ΔH &lt; 0 For non spontaneous process, ΔG &gt; 0

Q: reaction Ag2O → 2Ag(s) + 12O2(g), ΔH = 30.56 KJ mol− and ΔS = 66 J K−1 mol at 1 atmosphere pressure.…

A: □H = 30.56 kJ/mol □S = 66 J/K-mol □G = □H - T □S

Q: Without doing any calculations or using Sf data, arrange each group in order of increasing entropy.…

A: Always a gaseous (vapor) substance of same material have highest entropy compare to its liquid and…