For a given reaction, ΔH=69.3kJ/mol, and the reaction is spontaneous at temperatures above the crossover temperature, 464K. The value of ΔS= _______ J/mol⋅K, assuming that ΔH and ΔS do not vary with temperature. A. 149 B. 6700 C. 3.22×10^4 D. −6700 E.−149

Q: For a given reaction, ΔS = +112 J/mol ⋅ K, and the reaction is spontaneous at temperatures above the…

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Q: n 2*(aq, 1.0 M), Sn 4*(aq, 1.0 M) || Cu 2*(a . Increasing the size of the cathode. - Increasing the…

A: 1) from the cell notation    Overall cell reaction,  Sn2+ + Cu2+ ---> Cu + Sn4+ Increasing…

Q: Consider a chemical reaction that has a AH°f = 30.0 kJ/mol and a AS° = 100.0 J//mol•K). At what…

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Q: The decomposition of magnesium carbonate is shown M9CO3(s) → MgO(s) + CO2(g) AHO = 101 kJ-mol-1 and…

A: MgCO3(s) ......> MgO(s) + CO2(g)  dH° = 101KJ/mol dS° = 175JK-1mol-1 For spontaneous…

Q: One mole of an ideal gas undergoes the cycle, A⟶B⟶C⟶A, as shown in the graph. For this gas, CV =…

A: First law of Thermodynamics; ∆U=q+Wq = ∆U-W The process A→B is an isobaric process, constant…

Q: Choose spontaneos or non spontaneous reactions/process ✓ A waterfall runs uphill ✓ Water freezes…

A: In thermodynamics, a spontaneous process is one that occurs naturally under certain conditions. It…

Q: Now calculate the change in entropy (delta S) for the following reaction, using the thermodynamic…

A: Entropy is defined as the measurement of the randomness of the system. It is a state function that…

Q: For a given reaction AHO = 347 kJ and ASO = 155 J/K. At what tempereature will the reaction become…

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Q: One mole of an ideal gas undergoes the cycle, A⟶B⟶C⟶A, as shown in the graph. For this gas, CV =…

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Q: Refer to Appendix B in your textbook entitled Standard Thermodynamic Values for Selected Substances…

A: Given: 2SO2(g) + O2(g) -----> 2SO3(g) From standard Table:  ∆f H°(SO2(g))     = -296.8 kJ/mol ∆f…

Q: The decomposition of hydrogen peroxide, H2O2, to gaseous O2 and water is a spontaneous process, yet…

A: The decomposition of hydrogen peroxide, H2O2, to gaseous O2 and water is a spontaneous process, yet…

Q: Consider the reaction: N204(g) 2 NO2(g). What is AS° at 25 °C? AHP, kJ mol-1 AGf, kJ mol-1 NO2 33.85…

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Q: 69. Consider the sublimation of iodine at 25.0°C: I₂ (s) → 1₂ (9) a. Find AG at 25.0°C. b. Find…

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Q: Which of the following combinations of ΔH and ΔS values could lead to a spontaneous reaction?…

A: A chemical reaction is said to be spontaneous when the value of ∆G is less than ZERO.…

Q: For a given reaction, ΔH=−19.9kJ/mol and ΔS=−77.0J/K⋅mol. The reaction will have ΔG=0 at ________ K.…

A: Given,  ΔH=−19.9 kJ/mol = - 19.9 x 1000  J/mol = -19900 J/mol             ΔS=−77.0 J/K⋅mol…

Q: concerning S and  ΔS

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Q: Consider the reaction: 2 A (s) + 10.4 kJ ------ 2 B (s) + 3 C (g), at what temperature(s) would you…

A: For any reaction to be spontaneous, its Gibbs energy must be negative i.e below 0. Here, the…

Q: Question #70 i-iii please

A: The change in free energy of a chemical reaction in the standard state (∆G°) is furnished as the…

Q: Determine the lowest temperature (in "C) at which a certain reaction starts to become spontaneous…

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Q: For a chemical reaction to be spontaneous only at low temperatures, which of the following…

A: For any reaction to be spontaneous, the value of ΔGo i.e DGo of the reaction should be -ve. Hence…

Q: spontaneous

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Q: A 1.0 B 0.5 22.4 44.8 Volume (L) Pressure (atm)

A: From A→BThe process from A→B is isobaric since process is constantFor isobaric process entropy…

Q: Dissolution of Ammonium Nitrate mass of water: 200 g   initial temperature of water: 20°C final…

A: Dissolution of ammonium nitrate in water is endothermic reaction. It absorbs heat from the system

Q: Determine ΔS for the reaction 2 Fe2O3(s) <---> 4 Fe(s) + 3 O2(g) given the following…

A: 2 Fe2O3(s) <---> 4 Fe(s) + 3 O2(g)   For any reaction    ΔS = Sproducts - Sreactants   Also…

Q: 10. Iron(III) oxide can be reduced by carbon monoxide. Fe₂O3(s) + 3CO(g) 2Fe(s) + 3CO₂(g)Use the…

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Q: For the reaction CaCO3(s) → CaO(s) + CO2(g)       ΔHo = -17.8 kJ  and ΔSo = -161 J/K,  at standard…

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Q: A reaction has and enthalpy change of reaction value of – 37.6 kJ and an entropy change of reaction…

A: A reaction is spontaneous when change in  Gibbs Free energy is negative. Here, ∆H is negative =…

Q: c. 273 °C 8. For a given reaction, AH = +7.50 kJ/mol and AS = +70.74 J/(K mol). Above what…

A: In thermodynamics, a reaction is said to be spontaneous if it occurs without being driven by some…

Q: 68. Consider the reaction: CaCO3(s) → Cao (s) + CO₂ (g) Estimate AG° for this reaction at each…

A: Standard thermodynamics values of the given substances at 25oC are:

Q: If ΔH and ΔS for a reaction are both negative which of the following is true.   Select one: a. It…

A: We know that ΔG =ΔH - TΔS WHERE ΔG= Gibbs Free Energy ΔH= Enthalpy ΔS = Entropy T= Temperature For…

Q: A reaction has an equilibrium constant of 79 at 298 K. At 498 K, the equilibrium constant is 0.85.…

A: Formula used:  Van't half equation:  ln(K2/K1) = ∆H/R * [1/T1 -1/T2]  Where  K = equilibrium…

Q: Which of the following statements given is/are FALSE? I. A system at constant temperature cannot…

A: The correct option is:

Q: Sodium carbonate can be made by heating sodium bicarbonate: 2NaHCO3(s) → Na2CO3(s) + CO₂(g) + H₂O(g)…

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