The dissolution of ammonium chloride occurs spontaneously in water at 25 °C. As NH4CI dissolves, the temperature of the solution decreases. What are the signs of AH, AS, and AG for this process?

Q: How temperature determines spontaneity for reactions in which ∆S and ∆H have the same sign

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Q: For a particular reaction at 124.1 "C, AG = -201.43 kJ, and AS = 334.55 J/K. Calculate AG for this…

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Q: Predict the sign of AS° and then calculate AS ° for each of the following reactions: 2H,S(g) +…

A: a) The given reaction is: 2H2S(g)+SO2(g)→3Srhombic(s)+2H2O(g) ∆S˚ of the reaction is given by:…

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A: The change in Gibbs free energy is given by

Q: For a process with AH 0 O Never. O AE > 0 O AS > 0

A: A reaction is said to proceed spontaneously at any temperature if the enthalpy decreases and the…

Q: The dissolution of ammonium chloride occurs spontaneously in water at 25 °C. As NH4CI dissolves, the…

A: Given that : We have to determine the signs of ∆H, ∆S and ∆G.

Q: When a AH>0 and TAS<0 the reaction will be: a. system is an equilibrium not spontaneous spontaneous…

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Q: Determine the standard free energy change, ΔGf°, for the formation of S2− (aq) given that the ΔGf°…

A: Final answer : 92.094 KJ/ mol.

Q: What is the sign of ΔS for the reaction  Na2B4O7(s)       2 Na+(aq) + B4O72-(aq) ?

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Q: Consider the reaction: 2KCIO, 3 () 2KCI, + 30, 2 (e) At standard state, AG for the reaction is – 35…

A: In ∆G is negative then reaction is spontaneous and if ∆G is positive then reaction is non…

Q: [1] Given: CH«(g) + H2O(g) – CO(g) + 3H2(g). AH° for the reaction is +206.1 kJ/mol, while AS° is…

A: 1. Given :  CH4(g) + H2O(g) → CO(g) + 3H2(g)  ∆H° = +206.1 kJ/mol  ∆S° = +215 J/K.mol  T = 25°C  To…

Q: Calculate the standard free energy change, AG°, for the following reactions at the temperature giv…

A: 17) The reaction given is  =&gt; Ca (s) + 2 H2SO4 (l) -------&gt; CaSO4 (s) + SO2 (g) + 2 H2O (l)…

Q: The dissolution of ammonium nitrate occurs spontaneously in water at 25 °C. As NH4NO3 dissolves, the…

A: Given that the dissolution of ammonium nitrate occurs spontaneously in water at 25 oC. It is also…

Q: Predict the sign of AS and then calculate AS for each of the following reactions. (This problem…

A: To predict the sign of entropy We need to remember some easy rule - 1) Entropy at gases state &gt;…

Q: Directions: Given the AH° and AS°, Calculate the AG° values for the following reactions and indicate…

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Q: Which statement is true? All reactions for which DH <0 are spontaneous. O All reactions for which DS…

A: Correct answer is : All reactions for which ΔG &lt; 0 are spontaneous. Gibb's free energy change…

Q: [1] Given: CH.(g) + H2O(g) CO(g) + 3H2(g). AH° for the reaction is +206.1 kJ/mol, while AS° is +215…

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Q: For the reaction H,(g) + C,H,(g)–→C‚H6(g) AH° =-137 kJ and AS° =-121 J/K %3D AG° would be negative…

A: GivenH2(g)  +  C2H4(g)  →  C2H6(g)∆H° = -137 kJ = -137000 J∆S° = -121 J/K∆G° is given by formula∆G°…

Q: The reaction of calcium oxide with the pollutant sulfur trioxide, CaO(s) + SO3(g) → CaSO4(s); ΔG° =…

A: The value of ΔG can be calculated as, ΔG = ΔGo + RT ln Kc R = 8.314 L – atm mol-1 K-1 T = 25 + 273 =…

Q: The dissolution of K2Cr2O7 occurs spontaneously in water at 25 °C. As K2Cr207 dissolves, the…

A: Gibb's free energy equation is as follows, ∆G=∆H-T∆S where, ∆G is Gibbs free energy. ∆H is Enthalpy…

Q: What are the signs of AS, AH, and AG for the sublimation of dry ice (solid CO2) at 25°C? AS ΔΗ AG

A: According to the answering guidelines, I'm posting the solution for the first question. Kindly post…

Q: For a process with AH 0 O AS > 0 ΟΔΕ>0 O Never.

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Q: The value of Ke for the reaction A= B is 0.425 at 50.0°C and 0.625 at 100.0°C. Calculate AH° for the…

A: Given reaction  A  &lt;--&gt; B  Kc = 0.425 at T1 = 50°C = 323 K Kc = 0.625 at T2 = 100°C = 373 K

Q: Calculate the standard free-energy change at 25 ∘C for the following reaction:…

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Q: Consider the dissolution process of solid NaOH in water, where the solution temperature increases.…

A: Given,The dissolution process of solid NaOH in water, where the solution temperature increases.

Q: Ribozomes in your body create proteins by combing amino acids together. What are the signs of AG,…

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Q: For a particular reaction, AH = 139.99 kJ and AS = 298.7 J/K. Calculate AG for this reaction at 298…

A: For spontaneous reactions , ∆G must be negative. For equilibrium , ∆G=0

Q: 2. Predict the sign of AS° for each reaction. а. АВ2(g) + A(s) —> 2AB(g) b. 2AB2(g) + B2(g) →…

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Q: For the reaction below, determine the difference in relevant particles that allow for determination…

A: Given Reaction: Fe2(CO3)3 (s) + 6 LiClO4 (aq) -------&gt; 2 Fe(ClO4)3 (aq) +3 Li2CO3 (aq) To…

Q: For the reaction N20 (g) + NO2 (g) →3 NO (g), at 25°C AH° = +155.6 kJ/mol and AS° = +172.4 J/mol K.…

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Q: Calculate the standard free-energy change and the equilibrium constant Kp for the following reaction…

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Q: For a particular reaction at 199.1 °C, AG = -159.63 kJ, and AS = 894.41 J/K. Calculate AG for this…

A: Given data for a particular reaction at temperature 199.1°C ,  T = 199.1°C = (199.1+ 273) K = 472.1…

Q: The value of G° for the conversion of ATP to ADP is -35.6 kJ/mol. The reaction is: ATP(aq) →…

A: Here, Temperature, T =25°C +273.15K=298.15K. G=-35.6KJ/mol×1000J1KJ=-35.6×103J/mol. Using the…

Q: Why does water spilled on the floor evaporate even though ΔG° for the evaporation process is…

A: Evaporation is a physical process in which liquid is converted to a gaseous molecule. It is also…

Q: Which of the following is always true for any spontaneous reaction? A. AH> 0 B. AH0 D. AG <0

A: Since, Spontaneous reaction means reaction favoured without any external disturbance. Thus,

Q: A certain reaction has ∆H ° = +23.7 kJ and ∆S° = +52.4 J&gt;K. Calculate ∆G° for the reaction at 298…

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Q: (H2 ) →(12 ) +( 2HI) (AS = 82.4 J/K ) ,(AH = 25.9 KJ/K) %3D Calculate AG for this reaction at 25 C°

A: Given, H2 ---&gt; I2 + 2 HI ∆S = 82.4 J/K  ∆H = 25.9 KJ/K ∆G = ?

Q: At room temperature, the entropy of the halogens increases from I2 to Br2 to Cl2. Explain.

A: Entropy is defined as the measure of randomness of a system. Molecules which are in the gaseous…

Q: For a particular reaction at 127.9 °C, AG = -342.08 kJ, and AS = 324.01 J/K. Calculate AG for this…

A: Given , intial temperature , Gibbs free energy and entropy .

Q: Determine AG° for a reaction when AG = -132.9 kJ/mol and Q = 0.043 at 298 K. (R = 8.314 J/mol · K)

A: (a) Given: Temperature = 298 K Delta G = -132.9 kJ/mol Reaction Quotient for the reaction, Q = 0.043

Q: For the reaction below, determine the difference in relevant particles that allow for determination…

A: Given Reaction: Fe2(CO3)3 (s) + 6 LiClO4 (aq) -------&gt; 2 Fe(ClO4)3 (aq) +3 Li2CO3 (aq) To…

Q: A certain reaction is spontaneous at 65 ° C. If the enthalpy change for the reaction is  15…

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Q: For the reaction Fe,O3(s) + 3H2(g) 2Fe(s) + 3H20(g) AH° = 98.8 kJ and AS° = 143 J/K AG° for this…

A: Given data,∆Ho=98.8kJ∆So=143J/K

Q: For a particular reaction at 221.2 °C, AG = -700.77 kJ, and AS = 684.38 J/K. %3D %3D Calculate AG…

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Q: Why does water spilled on the floor evaporate even though ΔG0  for the evaporation process is…

A: Because ordinary conditions are not standard conditions and standard gibbs free eenrgy applies only…