2.1.1 Calculate ∆rGo , using only Gibbs energy values. 2.1.2 Calculate the equilibrium constant, K, at 25oC for this reaction

Q: Quantities for Selected Substances at 298.15 K (25⁰C) Substance ∆H⁰f (kJ/mol) ∆G⁰f (kJ/mol) S…

A: In the given question we have to calculate the standard entropy ∆S° for catalytic hydrogenation of…

Q: Photochemical smog is formed through a sequence of reactions, the first of which is N2(g) + O2(g) ⟶…

A: For a reaction to be spontaneous ,    should be negative Hence  value of should be greater than ,

Q: For the reaction A (g) → 2 B (g), K = 14.7 at 298 K. What is the value of Q for this reaction at 298…

A: The reaction given is,             A(g) → 2B(g) K = 14.7 at 298 K ∆G = -19.4 kJ/mol = -19.4  J/molWe…

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

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

Q: 3.) Consider the reaction below. Reaction: 2 ICI (g) 1: (g) Cl: (g) AH°f 17.78 (kJ/mole) S° 247.551…

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Q: d)The ΔH°f of Ar(g) is   1.positive. 2.negative. 3.zero. 4.must be determined experimentally.…

A: The ΔH°f of Ar(g) is 1.positive. 2.negative. 3.zero. 4.must be determined experimentally

Q: Given the heat capacities at constant pressure, Cp, in J/K-1mol-1 for the substances A, B, and C as…

A: In this question, we want to determine the value of ∆rH° at 2000°C temperature.  How we can…

Q: A chemical reaction has a enthalpy change of 171.8kJ and change in entropy of 788.3 J/K. what is the…

A: For spontaneous reaction ∆G<0 , For non-spontaneous reaction ∆G>0 Where ∆G is change in Gibbs…

Q: For the reaction A + B = C, with the equilibrium constant is K25 = 20 at 25 C, and it is K40= 10 at…

A: According to the Clausius Clapeyron equation ln(KT2 / KT1) = -(∆H/R) X ( 1/T2 - 1/T1 )  where KT2 =…

Q: For the reaction A (g) → 2 B (g), K = 14.7 at 298 K. What is the value of Q for this reaction at 298…

A: Given data :  A(g) ==> 2B (g) , K = 14.7  ∆G = -1.5 KJ/mol

Q: Use the molar ∆Hf° under formulas to calculate ∆H°rxn for the equations as balanced: 1. 4Al2O3 +…

A: The reactions given are, 1) 4 Al2O3 + 3 CH4 -------> 8 Al + 3 CO2 + 6 H2O  2) MnO2 (s) + 2 CO (g)…

Q: Calculate the ∆H of the following reaction. Show the complete and step by step solution. 1. 2C(s) +…

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Q: The evaporation enthalpy of benzene C6H6 is 394.0 J / g at the normal boiling point which is 80.10…

A: Given : Enthalpy of vaporisation of benzene = 394.0 J/g Boiling point temperature = 80.10 oC And…

Q: Using the data below, the reaction: 2SO­3(g) → 2S(s, rhombic) + 3O2(g) is nonspontaneous.…

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Q: For the reaction A (g) → 2 B (g), K = 14.7 at 298 K. What is the value of Q for this reaction at 298…

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Q: For the phase change, C2H5OH (liq) ↔ C2H5OH (g), calculate:   ∆H0rxn, ∆S0rxn and ∆G0rxn (using…

A: The feasibility factor or Gibbs energy change is dependent on the enthalpy along with entropy change…

Q: The addition of 121  g potassium fluoride to 591  mL of water (d = 1.00 g/mL) causes the temperature…

A: The mass of solution is calculated as shown,

Q: Calculate the entropy change (in J/K) of the universe (AS universe) that takes place when phosphene…

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Q: For the reaction A (g) → 2 B (g), K = 14.7 at 298 K. What is the value of Q for this reaction at 298…

A: Given: K = 14.7 T=298 K. ∆G = -2.5 kJ/mol

Q: Calculate ∆Go at 25 ᴼC for the reaction of which ∆Ho = +210kJ; ∆So = 32.5 J/K

A: Given, ∆H° = +210 KJ  ∆S° = 32.5 J/K

Q: 2) Consider the following reaction at constant pressure. Use the information here to determine the…

A: The objective of the question is to determine the value of ​ and whether the reaction is spontaneous…

Q: A certain hydrocarbon of the molecular formula CxH2x has a standard enthalpy of formation ∆Hf° =…

A: The correct method to calculate the value for x is attached below

Q: A reaction has ΔH∘rxn= -139 kJ and ΔS∘rxn=303 J/K .     Part A At what temperature is the change in…

A: GIven: ΔH∘rxn= -139 kJ=-13900 J ΔS∘rxn=303 J/K . Now, ∆Ssurrounding = ∆Hreaction / T

Q: Consider the following equation: 2 CH3OH (ℓ) + 3 O2 (g) à  4 H2O (ℓ) + 2 CO2 (g)         ∆H =…

A: The heat of reaction is a thermodynamic unit of measurement. It is the amount of energy either…

Q: ΔGo

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Q: Reaction 1: 20F2 (g) → O2(9) + 2 F2 (9) AH=-49.4 kJ Reaction 2: N2 (g) + 202(g) → 2NO2 (g) AH=+66.4…

A: When the gibbs free energy change is positive then the reaction is spontaneous and when the gibbs…

Q: An example of a reaction where ∆G = 0 is   C(graphite)→C(diamond)   any synthesis reaction…

A: We know, The value of  ∆G = 0 when the reaction is at an equilibrium.

Q: value for ΔrS°, in units of J K-1‑mol-1 at 25 °C?

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Q: Calculate AS° for NH3(g) + HCI(g) NH.CI(s)- Substance S (J/mol·K) NH3 (g) 192.5 HCI (g) 186.7 NH4CI…

A: Using the following formula, we can calculate the entropy of the reaction,…

Q: Using standard thermodynamic data at 298K, calculate the free energy change when 2.24 moles of…

A: Given:   NH4Cl(aq) = -210.5 NH3(g) = -16.5 HCl(aq) = -131.2

Q: During a certain reversible process, the surroundings undergo an entropy change, ∆Ssurr = -78…

A: As per the thermodynamic concept, the entropy of universe is the sum of entropy of system and…

Q: When in 1 atm of pressure, when is the reaction of formation of ozone from oxygen spontaneous? 3 O2…

A: We have to tell given reaction is spontaneous or not

Q: Consider the synthesis of sulphur trioxide from its elements at 25oC: 1/4 S8 (s) + 3O2(g) → 2SO3 (g)…

A: Given reaction is  1/4 S8 (s) + 3O2(g) → 2SO3 (g) Given thermodynamic data is  Species…

Q: Consider the synthesis of sulphur trioxide from its elements at 25oC: 1/4 S8 (s) + 3O2(g) → 2SO3 (g)…

A: Given chemical reaction is  1/4 S8 (s) + 3O2(g) → 2SO3 (g) Thermodynamic Data given is : Species…

Q: Consider the following reaction at 25 °C: 5 SO₃(g) + 2 NH₃(g) → 2 NO(g) + 5 SO₂(g) + 3 H₂O(g) If ∆H°…

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Q: For the reaction A (g) → 2 B (g), K = 14.7 at 298 K. What is the value of Q for this reaction at 298…

A: ∆G and Q are related as :  ∆G = ∆G° + RTlnQ  where , ∆G° is standard Gibbs free energy change . It…

Q: What is ∆Gο at 25° for the reaction: 2 CO (g) + 2 H2 (g) → CO2(g) + CH4(g), given that at 25° ∆Hο =…

A: Recall data, ∆H°=-247.3 KJ mol-1 ∆S°=-256.5 J mol-1K-1= -0.2565 KJ mol-1K-1 ∆G°=?

Q: lculate ∆H for the reaction 4NH3 (g) + 5O2 (g) → 4NO (g) + 6H2O (g), from the following data. 1. N2…

A: In a chemical reaction, some bonds are formed and some are broken.This results into change in the…

Q: Using the data below, the ∆S⁰ is -326.3 J/K in the combustion of hydrogen in the presence of excess…

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Q: What is the entropy at SATP of a reaction where ∆Hºrxn=12.5 kJ and Keq=32.1?

A: For the given reaction the change in enthalpy and equilibrium constant in given as below:…

Q: What is the value of AGrxn for the reaction: 2C » 3A+4B ? Given that C » 3/2 A+2B AG° 230.5 kJ/mol…

A: 1. Given: Reaction,             C → 32A + 2B ∆Grxn° = 230.5 kJ/mol 2. Given:      ∆Hrxn° = -37.1…

Q: SUBSTANCE ENTHALPY ENTROPY Ca3(G) 112 KJ mol 153.37 J/mol K CI7(G) 203.12 KJ mol 213.80 J/mol K…

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Q: 1.Calculate ∆U (in J) for one mole of ideal gas (CV = 3/2nR) which is heated from 30°C to 125

A: Internal energy denoted Symbol U which is the amount of energy possessed by a system the variation…

Q: Consider an exothermic and non-spontaneous process. make a drawing that represent this process and…

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Q: What is the significance of the change in Gibbs free energy (∆G)for a reaction?

A: The significance of the change in Gibbs free energy (∆G)for a reaction: (i) If ∆G for a reaction…

Q: Calculate ΔrH° for the combustion of methane gas, CH4 : CH4(g)  +   2 O2(g)  →   CO2(g)  +  2…

A: The standard enthalpy change for the formation of one mole of a compound from its elements in their…