The standard entropy for the formation of SF6(g) from the elements, S(s) + 3 F2(g) → SF6(g) is –348.7 J/K⋅mol-rxn at 298.15 K. Calculate the standard molar entropy of SF6(g) given S°[S(s)] = 32.1 J/K⋅mol and S°[F2(g)] = 202.8 J/K⋅mol.

Q: What is that the entropy change of the universe (J/mol-K) when the entropy change of the system is…

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Q: The entropy change ΔS for a phase transition equals ΔH/T, where ΔH is the enthalpy change. Why is it…

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Q: Consider these two reactions: Reaction 1: 20F₂(g) → O₂(g) + 2 F₂ (g) AH = -49.4 kJ Reaction 2: N₂(g)…

A: ★ Answer : Reaction 2  is non spontaneous. ★ Explanation :

Q: methanol, CH3OH, vaporizes at 25°C is 35.4 kJ/mol. What is the entropy change (in J/K) when one mole…

A: Given,   □Hvap = 35.4 kJ/mol T = 25 °c = 298 K □S = □H/T   = 35.4 ×1000/298 = 118.79 J/K-mol

Q: For a particular chemical reaction DH = 6.8 kJ and DS = –29 J/K. Under what temperature condition is…

A: Gibbs Helmholtz Equation: Is the equation denoted by,…

Q: Given ΔHrxn∘= −135 kJ, ΔS∘rxn= −263 J/K, and T= 550 K, will the reaction be spontaneous or…

A: Solution :     The change in Gibbs free energy calculated by the change in entropy, temperature, and…

Q: Given ΔHrxn∘= −135 kJ, ΔS∘rxn= −263 J/K, & T= 299 K, will the reaction be spontaneous?

A: Given: ΔHrxn∘= −135 kJ ΔS∘rxn= −263 J/K T= 299 K To find: Whether the reaction is spontaneous

Q: Which of the following statements regarding the Law of Thermodynamics is false? The entropy of the…

A: Thermodynamics studies the relation between heat, work, temperature, and energy. The laws of…

Q: Determine the entropy difference between solid and liquid states for a substance melting at 100 °C…

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Q: A 3.0 g block of ice melts at 0.0°C [ΔHfus(H2O) = 6.01 kJ/mol]. Calculate the entropy change for…

A: Heat require during melting of a liquid: Q1 = n . ΔHfus Heat require during warming up of a liquid:…

Q: For a reaction, ΔHrxn = -107 kJ and ΔSrxn = 285 J>K. At what temperature is the change in entropy…

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Q: FeO

A: ∆H°rxn = [ ∆H°f(Fe2O3) ] - [ ∆H°f(FeO) + ∆H°f(Fe) + ∆H°f(O2) ]  ∆H°rxn = [ -822.16 kJmol-1 ] - […

Q: Consider the reaction2H2O(g) + 2Cl2(g) ---> 4HCl(g) + O2(g)for which H° = 114.4 kJ and S° = 128.9…

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Q: Calculate the standard molar entropy of vaporization of water at 32.0 °C32.0 °C , given that its…

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Q: Calculate the entropy change of the universe (J/mol-K) when the entropy change of the system is 59.4…

A: Change in entropy of universe is the sum change in entropy of system and surrounding.

Q: Consider the reaction between nitrogen and oxygen gas to form dinitrogen monoxide:2 N2(g) +…

A: (a) Given data contains, The enthalpy of reaction is +163.2kJ. Temperature is…

Q: Calculate the change in entropy that occurs in the system when 1.33 mol of acetone (C3 H6O)…

A: Given: The number of moles of acetone is 1.33 mol The normal boiling point is 56.1oC The heat of…

Q: The enthalpy of vaporization of methanol (CH3OH) is 35.3 kJ/mol at the boiling point of 64.2 °C.…

A: The vaporization can be defined as phase transition from liquid phase to vapor phase.

Q: The entropy change for the process                                      H2 O(s) ⟶ H2 O(l)is 22.1 J/K…

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Q: The standard enthalpy of vaporization of a liquid is 20.7 kJ/mol at the liquid's normal boiling…

A: Given, dHv° = 20.7 kJ/mol = 20.7 x 1000 J/mol Tb = (52.4 + 273.15 K) = 325.55 K To calculate the…

Q: Consider a process in which the entropy of a system increases by 105 J K−1 and the entropy of the…

A: Given information,    The entropy of a system increases by 105 J K−1    The entropy of the…

Q: Use the data from this table of thermodynamic properties to calculate the values of Δ⁢Srxn∘ for each…

A: a) 2CO(g) + O2(g) ⟶ 2⁢CO2⁢(g) Standard entropy (S°) CO(g) = 197.674 J/mol.K O2(g) = 205.138 J/mol.K…

Q: For the reaction 2 CO (g) + O2 (g) → 2 CO2 (g), the entropy change is expected to be negative. Is…

A: The given chemical reaction is as follows: 2CO (g) + O2 (g) → 2CO2 (g) The stoichiometry of the…

Q: Consider a process in which the entropy of a system increases by 125 J K−1 and the entropy of the…

A: Entropy change of the universe is the summation of entropy change of the system and entropy change…

Q: Given the following data, calculate ΔGorxn to determine if the reaction Ti(s) + 2Cl2(g) -> TiCl4(l)…

A: Solution- Given data- ΔH of (TiCl4(s))=−804.2 kJ/mol and ΔH of(Cl2)=ΔH of (Ti(s))=0 kJ/mol.

Q: Calculate the change of the entropy of the system in J/K for the following phase transition:…

A: Given data -  Mass of methanol = 64.1 g  Molar mass of methanol = 32.04 gmol-1   Enthalpy of…

Q: What is the he entropy change of the universe (J/mol-K) when the entropy change of the system is…

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Q: Methanol is burned as fuel in some race cars. This makes it clear that the reaction is spontaneous…

A: The second law of thermodynamic explains that the heat transfer occur in the system from higher to…

Q: What is the entropy change

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Q: The ethyl alcohol vaporizes at 78 degrees Celcius, what is the change in entropy if 0.25 kg…

A: Solution - According to the question - Given - Change in entropy = ? S = ? H / T ? H = Heat change…

Q: Calculate the change in entropy (in J/K) that occurs in the system when 1.00 mole of diethyl ether…

A: We know ; ∆S = Q / T Where : ∆S = change in entropy Q = heat Change  T = temperature = 34.6°C =…

Q: What is the standard molar entropy change of the following reaction? 8 NH3(g) + 10 O2(g) → 8 NO(g)…

A: Entropy is a measure of the randomness of the system. The entropy change in a chemical reaction can…

Q: Calculate the normal boiling point of ethanol (CH3CH2OH) in degrees Celsius, given that its enthalpy…

A: enthalpy of vaporization  (∆Hvap) = 38.6 kJ/mol = 38600 J/molentropy of vaporization  (∆Svap) = 110…

Q: Calculate the change in entropy

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Q: Consider the reaction at 25 oC: 4NO(g)2N2O(g)+O2(g) Calculate ΔGo for the system at equilibrium…

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