For the reaction depicted in the molecular scenes, X is redand Y is green.(a) Write a balanced equation. (b) Determine the sign of ΔS. (c) Which species has the highest molar entropy?

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: Consider the following reaction at 298 K. C(graphite) + 2 Cl,(g) CCI, (1) AH = -139 kJ Calculate the…

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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: A reactions has ΔH°298 = 100 kJ/mol and ΔS°298 = 250 J/mol·K. Is the reaction spontaneous at room…

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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 certain reaction at 15°C, ∆H = −10.5 kJ/mol and ∆S = 30. J/mol•K. Calculate ∆G for the…

A: ∆G is the change in gibbs free energy. The value of ∆G is given by following expression :  ∆G = ∆H -…

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: 9. A chemical reaction under standard state has the enthalpy of reaction: A,H° = +117 kJ and the…

A: B) The reaction is entropy driven.

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 process increases the entropy of the system by 128 J/mol K and absorbs 54 kJ/mol of heat from the…

A: Given: Change in entropy (∆S) = 128 J/mol•K Absorbed heat=54 kJ/mol =54×103 J/mol    To determine…

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: Place the following in order of  increasing molar entropy at 298 K.  CO,    C 5H 12 ,    H 2

A: Given CO C5H12 H2 Arrange them in order of increasing molar entropy = To be determined

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: 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: Calculate the entropy of vaporization of water at 25 °c from thermodynamic data and its enthalpy of…

A: First calculate the entropy change of the given process at 25oC Given, The temperature of the system…

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: In photosynthesis, plants form glucose (C,H1206) and oxygen from carbon dioxide and water. Write a…

A: The balanced equation for photosynthesis is: 6CO2(g)+6H2O(l)→hvC6H12O6(s)+6O2(g) Determination of…

Q: For the decomposition of mercury(II) oxide, HgO, to mercury and oxygen: 2HgO(s) → 2Hg(l) + O2(g)…

A: Standard entropy change is the difference of standard entropy of product from standard entropy of…

Q: Consider the following reaction at room temperature:                         Co(s) + Fe2+(aq, 1.94…

A: The above Nernst equation could be simplified as, Ecell=E°cell-0.0592VnlogQ

Q: (a) Using the heat of vaporization in Appendix B, calculatethe entropy change for the vaporization…

A: a) First calculate the entropy change of the given process at 25oC Given, The temperature of the…

Q: Determine the: a. Heat of the reaction, AH b. AS c. AG at 25°C for the combustion of ammonia,…

A: a.

Q: Which of the following processes are spontaneous and which are nonspontaneous:formation of CH4 and…

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Q: It is determined that a particular chemical reaction has AH°rxn = 105 kJ and As°rxn = 252 JK1.…

A: For spontaneous reaction delta G must be negative....

Q: D. PCI, (s) → PCI,(1) + Cl, (g) The entropy, ASixn, mol Angas decreases. increases. has little or no…

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Q: Under what condition is a reaction with a negative AH and a positive AS spontaneous?

A: Answer: To check the spontaneity of a reaction we have to see the sign of ∆G of the given reaction .…

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

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Q: Predict the sign of entropy. Write P if it is positive and N for ative. Write your answer on the…

A: Entropy:  Degree of randomness (or) disorderness is said to be entropy It is represented by ∆S…

Q: For a certain chemical reaction, ∆H° = -35.4 kJ and ∆S° = -85.5 J>K.Is the reaction spontaneous…

A: For a reaction is given by, ∆G=∆H - T∆S where ∆H is the heat of enthalpy, T is the temperature and…

Q: Calculate the standard entropy change for the following reactions: Given S[So2(g)]=248.2j/k.mol,…

A: Given reaction and information,       Formation of SO3 from SO2 and O2.       Entropy value for SO2…

Q: What are the criteria for spontaneity in terms of entropy

A: The criteria for spontaneity in terms of entropy has to be determined.

Q: For the following decomposition reaction of ozone, O3 to form oxygen, O2. 2O3(g) →3O2(g) a)…

A: For a reaction to take place, some amount of energy is required. This energy is required to do work,…

Q: Under standard conditions, the products of a reaction have, overall, greater entropy than the…

A: Given that ∆S°products is greater than ∆S°reactants .

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: (a) What are the signs of ΔS and ΔH for the process depictedhere? (b) If energy can flow in and out…

A: Entropy(S) is a thermodynamic property which denotes the degree of disorder or randomness of the…

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

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

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: Place the following in order of  increasing molar entropy at 298 K.  CO  ,   C 5H 12 ,    H 2

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Q: How does the entropy of ice at −5°C diff er, if at all, from its entropy at −50°C?

A: Entropy- Entropy is a thermodynamic property. Entropy determines tendency of process. Tendency means…

Q: Arrange HCl(l), NaF(s), and SiF4(g) in the order of decreasing standard molar entropy at 25°C.

A: Arrange HCl(l), NaF(s), and SiF4(g) in the order of decreasing standard molar entropy at 25°C.

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: For each reaction with ΔH = + 245 kJ/mol and ΔS = + 48 J/molK ,at what temperature at which the…

A: The question is based on the concept chemical thermodynamics.   We have been given entropy &…

Q: For a certain process that occurs at constant T and P, the value of ∆G is positive. Is the process…

A: A spontaneous reaction is accompanied by decrease in enthalpy (negative ∆H) and increase in entropy…

Q: 1. The heat of fusion for water is 333.6 J/g. What is the entropy change for the universe when 1.00…

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Q: Question attached

A: A reaction is considered as spontaneous when the Gibbs free energy of the reaction (∆Gorxn) is…

Q: The normal freezing point of n-octane 1C8H182 is -57 °C. In what temperature range is the freezing…

A: For freezing process  ∆H < 0  and ∆S < 0  So,  ∆G = ∆H - T∆S  at low temperature  ∆G < 0…

Q: What is the sign of delta H and delta S for the reaction X(g) + Y(g) = XY(g) and state under what…

A: The above reaction is          X (g) + Y (g) → XY (g) Breaking of bonds requires absorption of…