The value of  G° at 141.0°C for the formation of phosphorous trichloride from its constituent elements,   P2(g)+3Cl2(g)=2PCl3(g) s __________ kJ/mol. At 25.0°C for this reaction,  H° is -720.5 kJ/mol,  G° is -642.9kj/mol  and   is  -263.7j/k

Q: Calculate the enthalpy change for the reaction 2K+S → K₂S using the following thermochemical…

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Q: For a particular reaction at 212.7 °C, ΔG=−843.71 kJ, and ΔS=603.37 J/K. Calculate ΔG for this…

A: Given : At temperature 212.7 °C, ΔG = -843.71 KJ = -843710 J…

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

A: The change in Gibbs free energy is used for the prediction of direction of the chemical reaction at…

Q: Which of the following changes will always be true for a spontaneous reaction?  +ΔG  –ΔG  +ΔS…

A: The spontaneous reaction means the reaction which occur without intervenation at given set of…

Q: Pure crystalline silicon, Si (s), can be obtained by reacting silicon dioxide (in the crystalline…

A: The ∆H0 and ∆S0 of the reaction can be calculated as follows:

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: Consider the following reaction at 25°c: 3 국지2(g) + 국0,(g) + (g) → HNO, (ag) -H,(g) → HNO, (aq) (3)…

A: We have to predict the temperature range.

Q: A key step in the production of sulfuric acid is the oxidation of SO2(g)to SO3(g): 2 SO2(g)+ O2(g)…

A: If change in Gibbs free enegry  ∆G < 0  then reaction become spontaneous  Let's find ∆G° by using…

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: For the reaction, 4KClO3(s) → 3KClO4(s) + KCl(s) Calculate ΔGosys for the process at 298 K if…

A: ∆Gsyso = ∆Hsyso - T ∆Ssyso  where     ∆Hsyso = Standard enthalpy change of system = - 144.3 KJ x…

Q: For a particular reaction, ∆H = -32 kJ and ∆S = -98 J>K. Assume that ∆H and ∆S do not vary with…

A: a. Given : ΔH = -32 kJ  ΔS = -90 J/K 1) To calculate Temperature at which  ΔG=0  ΔG = ΔH  - TΔS ΔG=0…

Q: A. For a certain process, ΔH° = -35.4 kJ and ΔS° = -85.5 J/K. Calculate ΔG°for this process and…

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

Q: Consider the reaction: 2 POCl3 (g) -> 2 PCl3 (g) + O2 (g) A) Calculate DGrxn° for the reaction…

A: Free energy helps us in determining whether the reaction is spontaneous or non-spontaneous. The…

Q: DeltaH=21 DeltaG=0.10115 Deltas=0.071 NaNO3 (s) → Na+ (aq) + NO3– (aq) 4. Looking at the chemical…

A: The given reaction is shown below. NaNO3s→Na+aq+NO3-aq

Q: Dessicants (drying agents) can often be regenerated by heating, although it is generally not…

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Q: Which reaction is spontaneous at SATP? AH=41.5 kJ, AS=-12.9 J/K AH=8.75 kJ, AS=21.2 J/K AH=24.9 kJ,…

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Q: (C2H5OH ) +(H2) →(CH3CHO) (AS = 114.2 J/K),(AH = 68.95 KJ/K ) %3D Calculate AG for this reaction at…

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Q: Consider the following reaction: CaCO3 (s) CaO (s) + CO2 (g) ΔΗ = + 177.8 kJ According to Le…

A: According to Le Chatelier's principle, if the equilibrium is disturbed by any factor then the…

Q: The standard state Gibb's energy and entropy changes are known for the reaction: 2H,S(g) +…

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Q: 3. 1. N2(g)+3112(g) -->2NH3(g) If AH = -92.2kJ and AS- -0.1987k/K, what is AG for the reaction at…

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Q: Determine ∆G° for the phase change CO₂(g) → CO₂(aq) at 25°C.

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Q: Which of the following processes are spontaneous:(a) the melting of ice cubes at -10 °C and 1 atm…

A: A spontaneous reaction is defined as a reaction that takes place on its own and no external energy…

Q: Consider the following process: C(s, diamond) --> C(s, graphite) deltaH°; (Cs, diamond) = 1.9…

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Q: Calculate the value of the free energy change, ΔG, for the reaction below at 227.0ºC when the…

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Q: For a particular reaction, AH° = -28.4 kJ and AS = -87.9 J/K. Assuming these values change very…

A: Given,  ∆H° = - 24 kJ = - 2400 J  ∆S° = - 87.9 J/K

Q: ) Are the following processes spontaneous or nonspontaneous? What is the sign on AG? a. Water…

A: The spontaneous reaction occurs without any external conditions whereas the nonspontaneous reaction…

Q: A reaction has the following thermochemical values at 263.15 K: ΔH = -196.8 kJ mol-1 ΔS = -168.7 J…

A: Given for a reaction  delta H = -196.8 KJ mol-1  delta S = -168.7 JK-1 mol-1 Temperature  = 263.15 K…

Q: Gibbs free energy in chemistry is symbolized G. It is related to the enthalpy (H) and entropy (S)…

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Q: Which of the following reactions results in a decrease in entropy? CaCO3 (s) CaO (s) + CO2 (g) N2O4…

A: Unit temperature measurement of the thermal energy method  is not usable for practical application.…

Q: The graph below shows the change in Gibbs free energy for two reactions. Change in Gibbs Free Energy…

A: Given:

Q: For the following reaction: SO2 (g)_± ½ O2(g)→ SO3(g) For this reaction to be spontaneous, what must…

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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: For a particular reaction, AH = -32 kJ and AS = -98 J/K. Assume that AH and AS do not vary with…

A: As we know that a spontaneous process is one that happens without the addition of external energy. A…

Q: Calculate the Gibbs free energy change (∆GRXN) in kJ that occurs when one mole of solid iron (III)…

A: Given unbalanced reaction is : Fe (s) + H2O (g) --> Fe2O3 (s) + H2 (g) Calculate the Gibbs free…

Q: An exothermic reaction produces two moles of gas from one mole of solid reactant. Will the reaction…

A: Since you have asked a question with multiple questions, we are solving first question for you. For…

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: Calculate ΔS° for each of the following reactions. Explain the sign of ΔS° based on the molecular…

A: a)   N2H4(g) + H2(g) ⇌ 2 NH3(g) Standard entropy for N2H4(g) = 238.36 J/mol.K Standard entropy for…

Q: For a particular reaction, AH° = 20.1 kJ/mol and AS° = 45.9 J/(mol·K). Assuming these values change…

A: Answer:- This question is answered by using the simple concept of spontaneity of the reaction which…

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: Calculate AGᵒrxn in kJ for the following reaction at 550.0 K. CaCO3(s)→ CaO(s) + CO₂(g) -89040 O…

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Q: For a particular reaction, ΔH = -32 kJ and ΔS = -98 J/K.Assume that ΔH and ΔS do not vary with…

A: Given data, ΔH = -32 k J  ΔS = -98 J/K. Assume that ΔH and ΔS do not vary with temperature. (a)…

Q: Consider the reaction given below. H2(g) + F2(g)  2 HF(g) (a) Using thermodynamic data from the…

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Q: 10. Use the data: AGº (CO) = -137.2 kJ, AGº (C) = 0 kJ, AGº (O₂) = 0 kJ, to find K at 298 K for the…

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Q: One of the reactions that destroys ozone in the upper atmosphere is NO(g) + O3(g) ⇒ NO2 (g) + O2(g)…

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Q: ∆Gº for the reaction, H2(g)+Br2(g)⇄2HBr(g), is -33.3 kJ. Which statement below is true?   To make…

A: Given that : For the reaction, H2(g)+Br2(g)⇄2HBr(g), ∆Gº = -33.3 kJ ∆Gº is Gibbs free energy change.

Q: For a nonspontaneous reaction , AS° = 189 J/K, and AH° = 76.3 KJ. At what temperature this reaction…

A: ∆G° = ∆H° - T∆S°  ∆G°<0 for spontaneous reactions

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…

Q: Calculate ΔS° for each of the following reactions. Explain the sign of ΔS° based on the molecular…

A: Entropy is defined as the degree of randomness or disorderliness of the System.   if the molecules…

Q: Methanol, CH3OH , is formed from methane and water in a two‑step process. Step 1:…

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