Which of the following result in an increase in the entropy of the system?I.H-HII. Br₂(g) → Br₂(7)III. NaBr(s) — Na*(aq) + Br (aq)IV. 02(298 K) → O₂(373 K)V. NH3(1 atm, 298 K) → NH3(3 atm, 298 K)III, VI, III, IVI, II, III, IVI, II, III, V

Entropy (S) is the measure of randomness of a systemEntropy depends on few factors,1)Temperature:…

Answered: Which of the following result in an…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Which change is likely to be accompanied by an increase in entropy? A. N2 (g) + 3 H2 (g) → 2 NH3 (g) at 25 °C + AgCl (s) at 25 °C B. Ag* (aq) + CF (aq) C. CO2 (s) → CO2 (g) at -70 °C D. H20 (g) = H2O (I) at 100 °C
The heat of vaporization of carbon disulfide, CS2, at 25°C is 27.2 kJ/mol. What is the entropy change when 1.60 mol of vapor in equilibrium with liquid condenses to liquid at 25°C? The entropy of this vapor at 25°C is 243 J/(mol.K). Entropy change J/K = What is the entropy of the liquid at this temperature? Entropy J/K =
O ENTROPY AND FREE ENERGY Predicting qualitatively how entropy changes with temperature. OD 15 Nerbs V For each system listed in the first column of the table below, decide (if possible) whether the change described in the second column will increase the entropy S of the system, decrease S, or leave S unchanged. If you don't have enough information to decide, check the "not enough information" button in the last column. System Change AS O AS 0 not enough O information AS 0 not enough information O AS 0 not enough information Fxplanation Check 0 Terms of Use I Privacy Center| Accessibility O 2022 McGraw Hill LLC. All Rights Reserved. re to search 99+ IA
Consider the following reaction at 25 °C: 5 SO3(g) + 2 NH3(g) → 2 NO(g) + 5 SO2(g) + 3 H20(g) If AH° = 42.4 kJ./mol and AS° = 562.3 J/mol•K, estimate the temperature at which this reaction would be at equilibrium assuming that enthalpy and entropy are independent of temperature. %3D %3D
1. Ammonia can be made from the reaction of nitrogen and hydrogen: N2 (g) + 3 H2 (g) ⟺ 2 NH3 (g) For this reaction, K = 1.6 x 102 and ΔH = -91.8 kcal/mole at 25oC. Is the reaction endothermic or exothermic? Briefly explain. Is there in increase in entropy, a decrease in entropy, or no change in entropy? Briefly explain. At 25oC, is this reaction product favored or reactant favored? Briefly explain. Do you expect this reaction to be spontaneous at all temperatures? Briefly explain.
For each of the following reactions determine if the change in entropy was positive or negative:A) Water at 40°C → Water at 25°CB) 2NO2(g) → N2O4(g)C) CH3OH (l) → CH3OH (g)D) PbCl2(s) → PbCl2(aq)
1:44 1 LTE 4 1 Search Question 20.b of 23 Show Answer Consider the reaction Cl2(g) + Br2(g) → 2 BrCI(g) at 25 °C. Which of the following best explains why the change in entropy is so small? A) All of the components in the chemical equation are gases. B) There are the same moles of gas on both sides of the reaction. C) The temperature of the reaction does not change. Tap here or pull up for additional resources
For the following reactions, indicate whether the entropy of the system increases, decreases, or remains nearly the same. a. Al3+(aq) + 3 OH-(aq) → Al(OH)3(s)b. CaCO3(s) → CaO(s) + CO2(g)c. Mg(s) + Cu2+(aq) → Mg2+(aq) + Cu(s)
Which reaction below has a positive change in entropy? O 2 N20 (g) --> 2 N2 (g) O2 (e) O N2 (g) + 3 H2 (g) -- 2 NH3 (g) O 2 KCIO3 (s) --> 2 KCI (s) + 3 O2 (g) O 2 H2 (e) C2H2 (g)--> C2H, (g).
Question 6 The mathematical equation that best defines the change in molar entropy of the system is OA. Atrs S = AU + AtrsH/Ttrs O B. Atrs S = AtrsH/Ttrs OC Atrs S=AtrsH - Ttrs D. AH = AU + w E. AH = AU - pAV
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O ENTROPY AND FREE ENERGY Using reaction free energy to predict equilibrium composition D 3/5 Consider the following equilibrium: 2NOC1 (g) - 2NO (g)+ Cl, (g) AG" =41. kJ Now suppose a reaction vessel is filled with 2.68 atm of nitrosyl chloride (NOCI) and 3.74 atm of chlorine (Cl,) at 227. °C. Answer the following questions about this system: rise Under these conditions, will the pressure of Cl, tend to rise or fall? fall Is it possible to reverse this tendency by adding NO? In other words, if you said the pressure of Cl, will tend to rise, can that yes be changed to a tendency to fall by adding NO? Similarly, if you said the no pressure of Cl, will tend to fall, can that be changed to a tendency to rise by adding NO? If you said the tendency can be reversed in the second question, calculate the minimum pressure of NO needed to reverse it. | atm Round your answer to 2 significant digits. II

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Which of the following result in an increase in the entropy of the system? I. H-H II. Br₂(g) → Br₂(7) III. NaBr(s) — Na*(aq) + Br (aq) IV. 02(298 K) → O₂(373 K) V. NH3(1 atm, 298 K) → NH3(3 atm, 298 K) I II, V I, III, IV I, II, III, IV I, II, III, V