For a certain chemical reaction, ΔH° = -35.4 kJ andΔS° = -85.5 J/K. (a) Is the reaction exothermic or endothermic?(b) Does the reaction lead to an increase ordecrease in the randomness or disorder of the system?(c) Calculate ΔG° for the reaction at 298 K. (d) Is the reactionspontaneous at 298 K under standard conditions?

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: Determine if the acid-base neutralization reaction of hydrochloric acid (HCI) with so (NaCI) and…

A: Determine if the acid-base neutralization reaction of hydrochloric acid (HCI) with sodium hydroxide…

Q: At 961. K, ΔGo equals -77.2 kJ for the reaction, N2O4(g) ⇌ 2 NO2(g).   Calculate the value of…

A: The relationship between deltaG°(the free energy change) and K (the equilibrium constant) is…

Q: What is the advantage of calculating free energy changesrather than entropy changes to determine…

A: The entropy change of the system depends upon the randomness. As the randomness of the system…

Q: che standard entropy change to c

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

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Q: 36 of 48 A reaction is always non-spontaneous when O AH>0, AS>0 O AH>0, AS O AH O AH0

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Q: Choose the FALSE statement. OA process for which AHsys > 0 and ASsys O is spontaneous at…

A: Spontaneous reaction is a process which under some given condition may take place by itself or by…

Q: 6. A reaction has a AH° of -29 kJ and AS° is -60. J/K. Calculate the temperatu from spontaneous to…

A: Spontaneous reactions are those reactions which proceed on their own without any external force.…

Q: 39 of 48 Which reaction is spontaneous at SATP? O AH=62.5 kJ, AS -1.25 J/K O AH--10.1 kJ, AS=-49.6…

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Q: Calculate the standard entropy change for the reaction ; CO2(g) + H2O( l) →   CH4(g) + O2(g)…

A: Given   Reaction  CO2(g) + H2O(l) →   CH4(g) + O2(g)   Standard entropy change = ?

Q: For a certain reaction, AH° = +27.1 kJ and AS° = +111 J/K. If n=3, calculate E° for the reaction at…

A: From thermodynamics: ∆G°=∆H°-T∆S°…

Q: Given the information A+B⟶2D  Δ?∘= -682.0 kJ      Δ?∘= 377.0 J/K  C⟶D  Δ?∘= 496.0 kJ      Δ?∘=…

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Q: ΔΗ 1353. kJ J AS = K 2co,() + 4H,0 (g) → 2CH,OH (g) + 30,(g) AG = 10. kJ Which is spontaneous? this…

A: Given ,  temperature, T =123°C = (123 +273 )K=396 K Pressure = constant

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

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Q: For the below endothermic chemical reaction, ASsys is [ Select ] and ASsurr is [ Select ] * meaning…

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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: Which statement is incorrect? Gibbs free energy, AG, is a state function and when it is negative the…

A: ∆G is  change in Gibbs Free energy .For a process to br spontaneous ∆G should be negative.

Q: The reaction for which AH° = – 1137 kJ & AS°=0.496 kJ/K at 45° C will go spontaneously.

A: From given data  ∆H°= -1137 kJ ∆S°= 0.496 kJ/K T= 45°C= 273 +45 =318 K  Formula used  ∆G°=∆H°-T∆S°…

Q: Given the following chemical reaction and standard thermodynamic quantities in the table,…

A: Given the following chemical reaction and standard thermodynamic quantities in the table,…

Q: 4.) Which statement is correct at constant temperature and pressure? A. All reactions for which…

A: Spontaneity of any system is decided by the value of ΔGsys.

Q: At what temperatures is the following reaction spontaneous: HCI (g) + NH3 (g) → NHẠCI (s) + heat…

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Q: 1.Which of the following statements are true for the reaction: I2e) → I. AH is positive II. AH is…

A: I2(g) ----> 2I(g)

Q: For a reaction, the enthalpy change is -210 kJ, the entropy change is -170 J/mol.K and the…

A: We have given that  For a reaction, the enthalpy change is -210 kJ, the entropy change is -170…

Q: For a reaction to be spontaneous, the change in Gibbs free energy (AG) must be which of the…

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Q: (a) Is an endothermic reaction more likely to be sponta-neous at higher temperatures or lower…

A: Since you have posted multiple questions, we will solve only one question for you. If you any…

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

A: Enthalpy change of a chemical reaction is used to measure the amount of heat energy released or…

Q: 7) Calculate AG for a reaction at 85 °C if AH is -34.6 kJ and AS is -114 J/K. Is the reaction…

A: Given ΔH = -34.6 kJ ΔS = -114 J/K T = 85°C

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: Which of the following reactions MUST be NONSPONTANEOUS at ALL temperatures? A reaction with AH =…

A: 1) A reaction with ΔH= 100 kJ and ΔS= - 10 J/K is the correct option to get non spontaneous reaction…

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  <--> B  Kc = 0.425 at T1 = 50°C = 323 K Kc = 0.625 at T2 = 100°C = 373 K

Q: Use the observations about each chemical reaction in the table below to decide the sign (positive or…

A: The reaction is spontaneous when – ΔG is negative ∆G = ∆H - T∆S

Q: Which statement is true for the freezing of liquid wa O AH is negative; AS is negative; AG is…

A: Freezing is the process in which liquid converts to solid. So heat is released.  Hence it is…

Q: If AH° for this reaction is -198 kJ, what is the value of K, at 1060 K?

A: Given data is Kp1 = 0.365  T1  = 1150 K  Kp2 = ?        T2 = 1060 K  ∆H = -198 kJ

Q: Complete the table. That is, calculate AG for the first reaction and AS for the second. (Round your…

A: The relationship between ∆G, ∆H and ∆S is as follows: ∆G=∆H - T∆S ∆H is change in enthalpy of…

Q: Is it possible to have a reaction where Kc = Kp? If so, under what conditions wouldthis relationship…

A: The relationship between the Kp and Kc for any gas-phase reaction is given by,…

Q: Classify the possible combinations of signs for a reaction's AH and AS values by the resulting…

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Q: (a) Calculate AH° andAs° for the reaction below. Explain what each of the signs mean. N2(g) + 3…

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Q: Consider the figure below which shows AG" for a chemical process plotted against absolute…

A: The standard Gibbs free energy of reaction is the Gibbs free energy of a reaction calculated at the…

Q: When solid ammonium chloride, NH4CI(s), is added to water at 25 degrees C, it dissolves and the…

A: We have to determine the change of enthalpy and entropy.

Q: Given the reaction: NaOH(s) + H,O() ? Na+(aq) + OH-(aq) + 10.6 kJ, the heat of reaction, AH, is…

A: Given: Reaction is as follows: NaOH + H2O  ----->   Na+  +  OH-  + 10.6 KJ This is an exothermic…

Q: enumerate at least three examples each for a spontaneous reaction and a nonspontaneous reaction

A: A spontaneous reaction is a reaction which occurs without the help of an external force or energy.…

Q: 8) Calculate AG for a reaction at -12 °C if AH is -34.6 kJ and AS is -114 J/K. Is the reaction…

A: To Solve this problem we will use the formula  ∆G = ∆H - T∆S  Where , ∆G = Gibbs free energy change…

Q: For the reaction, A + B C, AH° = -40 kJ, and AS° = +80 J/K. Which of the following statements is…

A: Given: ∆H°=-40 kJ ∆S°=+80 J/K

Q: chemical reaction has a positive change in entropy. According to the diagram below, that else is…

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Q: Calculate AG for a reaction at 85 °C if AH is -34.6 kJ and AS is -114 J/K. Is the reaction…

A: Answer of this question :-

Q: Use the Standard Thermodynamic Properties table to calculate AH following reaction: B2H6 (g) + 3 02…

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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: Which pair of reactant will produce a spontaneous reaction if everything is present in its standard…

A: The standard reduction potential of Cu and Fe is as follows: Cu2++2e−→Cu…

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…