AH? AG? (kJ/mol) (kJ/mol) (J/mol·K) Compound Ethylbenzene, C,H5-CH2CH3 –12.5 Styrene, C,H5–CH=CH2 119.7 255 103.8 202.5 238

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: 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: Estimate the sign of the entropy change for the reaction: CACO3 (s) → CaO (s) + CO2 (g)

A: Given :-  CaCO3(s) → CaO(s) + CO2(g)  To be determined :- sign of ∆S (entropy change)

Q: che standard entropy change to c

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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 +215…

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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: Calculate the free energy change for the following reaction and predict whether the reaction occurs…

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Q: Calculate the standard free energy for the combustion of 1 mole of ethylene, C₂H₄(g), in the gas…

A: The reaction for the combustion of ethylene in gas phase – C2H4g +3O2 g →2CO2g +2H2Og

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: 1. N2(g}+3H2(g) --->2NH3(g) If AH = -92.2kJ and AS= -0.1987KJ/K, what is AG for the reaction at…

A: The free energy change,ΔG can be calculated using the formula: ΔG = ΔH - TΔS ΔH = enthalpy change ΔS…

Q: 4. Given the equation, calculate the standard free energy change. Answer what is being asked. Show…

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Q: 15. What is the entropy change for ice melting, given that the enthalpy of fusion is 6.02 kJ at…

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Q: 2. Calculate the temperature in which the following reactions become spontaneous. b) Reaction B: AH…

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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: 2 ClO2 (g)   +  2 TiCl4 (l)    →     2 TiO2 (s)   +   5 Cl2 (g)         Delta H =  – 343.8 kJ when…

A: Please have a look on the solutiion:

Q: When AH = -133 kJ and AS = -0.133 kJ/K, calculate AG at room temperature, 25 °C, for the following…

A: The spontaneous nature of the reaction is determined by calculating the change of free energy of the…

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: 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: Is the following reaction spontaneous as written? Explain. Do whatever calculation is needed to…

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Q: What is the value of the equilibrium constant at 20°C for a reaction that has a standard free-…

A: The relationship between the ΔG0 and equilibrium constant is given by  RTln(K) = nFE0cell = -ΔG0…

Q: A reaction with ∆S > 0 is spontaneous at high temperature. Under what conditions would it also be…

A: Reaction is spontaneous with ∆S > 0 at high temperature.  The conditions at which reaction is…

Q: 1. What thermodynamie quantity is used to determine whether a chemical reaction will proceed…

A: When a reaction proceed on its own without any external aid, it is called spontaneous reaction.

Q: Consider the following reaction: CH3OH(g) --> HCHO(g) + H2(g); DHo = 85 kJ (2)…

A: As this reaction is endothermic in nature as Del H is positive

Q: If the Delta*H = 135kJ / m * ol and AS 92 J/K mol, at what temperature does this reaction become…

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Q: What thermodynamic quantity is used to determine whether a chemical reaction will proceed…

A: In the thermodynamic system we can determine which reaction is spontaneously or which reaction is…

Q: o1. N2a) +3H2(a) ->2NH319) utoegmet diod .anolfibnoo llo ni bilov ai noitoupe airfT If AH = -92.2kJ…

A: Gibbs Helmholtz equation is the equation that relates the Gibbs free energy change to enthalpy…

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

A: Note : Since you have posted multiple questions, we are entitled to answer the first only. Please…

Q: 3. A reaction has a standard free energy change (G⁰) of -21.6 kJ/mol at 25 ⁰C. a. Is this reaction…

A: Given , The reaction has a standard free energy change (ΔG⁰) of -21.6 kJ/mol at 25 ⁰C.  We have to…

Q: The standard free energy of formation, AG? , of a substance is the free energy change for the…

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Q: calculate the free energy change (in kJ) of a reaction at 466.4K that has an entropy change of…

A: Given,    ΔS = 692.2 J/K   = 0.6922 kJ/K   ΔH = - 4.24 kJ    T = 466.4 K Free energy change ( ΔG )…

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: Calculate Delta G^o for the following reaction at 25Celsius.  What is k of reaction? What type of…

A: The reaction given is, => C2H4 (g) + O2 (g) → CO2 (g) + H2O (g)

Q: The equilibrium constant for a chemical reaction is Kc = 902 at 25°C. What is the standard free…

A: We know that, the standard free energy change of the reaction is related to the equilibrium constant…

Q: For a reaction for which AH = -142 kJ/mol and AS = -178 J/mol· K, which of the following statements…

A: If ∆G is negative, the process is spontaneous and may proceed in the forward direction. If ∆G is…

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: 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: What are the signs of ΔH, ΔS, and ΔG for the spontaneous conversion of a crystalline solid into a…

A: Conversion of a crystalline solid into gas requires addition of energy.  A reaction that absorbs…

Q: Is the reaction MgO (s) + C (s) → Mg (s) + CO (g) spontaneous at 1500 ºC?

A: The above is represented the Ellingham diagram. It is represents the temperature depends stability…

Q: What should be the sign of EMF for the reaction to be considered spontaneous? Why?

A: The Gibbs free energy for a spontaneous reaction has a negative sign. ∆G = -ve for spontaneous…

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

A: Given,  ΔHf0  NaCl  =  - 411.0  kJ/mol ΔHf0 H2O  = - 285.8 kJ/mol ΔHf0 HCl  =  - 92.3 kJ/mol ΔHf0…

Q: For the following reaction, calculate the a.ΔrxnH, b.ΔrxnS, c. ΔrxnG (25°C) of the following…

A: Given, H2 (g) + I2 (s) --> 2 HI (g) At 25 °C, the a.ΔrxnH, b.ΔrxnS, c. ΔrxnG is:

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: What will be the enthalpy of reaction in KJ if the entropy (ΔS) is 519 J/K at 73oC?

A: Given  Change in Entropy ( ∆S ) = 519 Joule/K  Temperature ( T )  = 73℃…

Q: 9) For which set of values of AH and AS• will a reaction be non-spontaneous at 25°C? a) AH• = -10…

A: Multiple question

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: In photosynthesis, plants form glucose (C6H12O6) and oxygen from carbon dioxide and water. Write a…

A: Photosynthesis It is a process in which green plants make their own food and convert light energy…

Q: Consider the following reaction; A(g) + B(g) → C(s) + D(g); AH = 159.1 kJ; AG = 164.1kJ at 298 K %3D…

A: ∆G = ∆H - T∆S 164.1 = 159.1 - T∆S For the reaction to be spontaneous the value of ∆G should be…

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: For a given reaction, ΔH∘∘= +35.5 kJ/mol and ΔS∘∘= +83.6 J/(K∙∙ mol). In what temperature range is…

A: From thermodyanamic relations, we have ΔGo = ΔHo - TΔSo      ------(1) For a reaction to be…

Q: The enthalpy and entropy changes for a reaction at 298 K are ∆H = 46 kJ and ∆S = 190 J/K. Which of…

A: Spontaneity of any reaction is defined by the value of ΔG of the reaction. The reaction will be…