Given:                   N2 (g) + 3F2 (g) → 2NF3 (g)             Exothermic This process is nonspontaneous under standard conditions at room temperature.  In order to make this reaction spontaneous, would you raise or lower the temperature?

Q: For each reaction with ΔH = + 187 kJ/mol and ΔS = + 365 J/molK ,at what temperature at which the…

A: Given: ΔH = +187 KJ/mol or +187000 J/mol ΔS = +365 J/molK We have to calculate temperature(T) at…

Q: At temperature T0, substance X in its A form (A can be liquid, solid or vapor) has same chemical…

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Q: The entropy of a reaction is 360 J/mol K and the enthalpy of a reaction is 847 kJ/mol. Calculate the…

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Q: How does temperature effect spontaneity? Under what conditions is enthalpy the dominant…

A: We know that, ΔG = ΔH - TΔS For a reaction to be spontaneous ΔG must be negative in sign ΔG < 0 ,…

Q: Which substance would have the greatest standard molar entropy? O N2(g) NO2(g) O N2(1) O NO2(1)

A: Entropy (S): entropy dependence on randomness of a system . For example randomness order…

Q: A process increases the entropy of the system by 128 J/mol K and absorbs 54 kJ/mol of heat from the…

A: Given: Change in entropy (∆S) = 128 J/mol•K Absorbed heat=54 kJ/mol =54×103 J/mol    To determine…

Q: The balanced chemical equation for the combustion of propane gas is: C3H8 (g) + 5 O2 (g) --> 3 CO2…

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Q: (a) Can endothermic chemical reactions be spontaneous?(b) Can a process be spontaneous at one…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

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: Calculate the change in entropy that occurs in the system when 45.8 g of diethyl ether (C4H10O)…

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Q: For the decomposition of mercury(II) oxide, HgO, to mercury and oxygen: 2HgO(s) → 2Hg(l) + O2(g)…

A: Standard entropy change is the difference of standard entropy of product from standard entropy of…

Q: Create a system that shows the third law of thermodynamics and how it relates to the concept of…

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Q: As shown here, one type of computer keyboard cleaner contains liquefied 1,1-difluoroethane 1C2H4F22,…

A: The degree of randomness is called entropy. Entropy in the high-pressure region is high due to the…

Q: Discuss the spontaneity of each process in the following scenarios, based on the use of the Gibbs…

A: The spontaniety of Reaction depends upon the sign of ∆G value for the reaction . The reaction is…

Q: Which of the following reactions results in an increase in the entropy of the system? A) CH₄(g) +…

A: When degree of randomness of products is greater than reactants they result in an increase in…

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: Define gibbs free energy in a reaction.

A: Thermodynamic is the branch of chemistry that mainly deals with the heat transfer between system and…

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: Which reaction results to a decrease in the entropy of the system? O 4 NH3 (g) + 5 02 (2) → 4 NO (g)…

A: The entropy is the measure of degree of randomness in a molecule.

Q: III of thermodynamics. Explain your law.

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Q: Which of the following is a correct statement about the third law of thermodynamics ? O The entropy…

A: Thermodynamics is the branch of science which deals woth the study of energy changes and their…

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

A: Given-> Weight of pentanol = 155.1 gm Molar mass of pentanol = 88.15 g/mole Enthalpy of…

Q: What is the application of standard Gibbs free-energy to processes and reactions What is its…

A: Thermodynamics is the branch of chemistry which deals with the study of heat and other forms of…

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: Standard molar entropies for CO(g), CO2(g), and O2(g) are 197.9, 214.0, and 205.0 in J/mol K,…

A: Entropy Entropy is the measure of disorder in a reaction. When an amount of energy is added to a…

Q: Can a process be spontaneous at one temperature and nonspontaneous at a different temperature?

A: Thermodynamics can be used to explain the spontaneity of a reaction.

Q: The element oxygen was prepared by Joseph Priestley in 1774 by heating mercury(II) oxide: HgO(s) →…

A: Given chemical equation:  HgO(s) ------> Hg(l) + 1/2O2(g) For a reaction to be spontaneous,…

Q: Consider the following reaction at constant P. Use the information here to determine the value of…

A: From thermodynamics: ∆Ssurr=∆HT                                                              . . .…

Q: Which of the following statements must be true for the entropy of a pure solid to be zero? I. The…

A: Entropy, the measure of a system's thermal energy per unit temperature that is unavailable for doing…

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: represents the change in entropy for a system going from 142 possible microstates to 830 possible…

A: In Boltzmann's definition the entropy is the total numbers of possible microstates. the Boltzmann's…

Q: Describe Gibbs' free energy and give an example of a spontaneous process.

A: The process which occur by itself without any external energy is known as spontaneous process.

Q: Why do exothermic processes tend to be spontaneous at low temperatures? Why does their tendency…

A: According to second law of thermodynamics,

Q: Consider these two reactions: Reaction 1: 20F2(g) O2(g) + 2 F2(g) ΔΗ-49.4 k Reaction 2: N2(8) +…

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Q: In which of the following processes does the entropy of the system decrease? (i) CH4(g) + 2 O2(g)…

A: Entropy is the measurement of disorder.  Gases have more entropy than liquids and liquids have more…

Q: For a given reaction, dH = 32 kJ/mol and dS = 117 J/mol. At approximately what temperature would…

A: The spontaneity of the reaction can be determined by the change in Gibbs free energy. The relation…

Q: Calculate the change in Gibbs free energy for each of the following sets of ΔH∘rxn , ΔS∘rxn , and T.…

A: ΔG∘ = ΔH∘ - TΔS∘

Q: Consider the decomposition of dinitrogen tetroxide, N2O4, into nitrogen dioxide, NO2.  N2O4…

A: The balanced reaction given is, => N2O4 (g) → 2 NO2 (g) The thermodynamic data given is,…

Q: In a certain spontaneous process, the system undergoes an entropy change of 4.2 J>K; therefore,…

A: For a spontaneous process, the entropy of a system is less than the entropy of surroundings.

Q: What is the temperature at which the reaction below becomes spontaneous, if the standard entropies…

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Q: Calculate the standard change in Gibbs free energy of the following reactions at Standard Ambient…

A: At SATP, Pressure, P = 1 atm Temperature, T = 25 °C                          = (25 + 273.15) K…

Q: In order to be a spontaneous reaction, what has to be true about Gibbs Free Energy?

A: Gibbs free energy of any reaction is defined as the maximum amount of reversible work that may be…

Q: . Chloroform, CHC13, has a normal boiling point of 61 °C and it enthalpy of vaporization is 29.24…

A: Formula used:- ∆G°=∆H°-T∆S° But in this condition ∆G° = 0  Thus new formula is ∆S° = ∆H°/T

Q: iven the following table of thermodynamic data, complete the following sentence. Substance ΔH°f…

A: Given : We have to predict which is condition is correct for given data.

Q: Which of the following results in a decrease in the entropy of the system? Group of answer choices…

A: Since we know that Entropy depends upon on the number of moles of gas molecules on products side and…

Q: To reach thermodynamic equilibrium under certain constraints, some state functions need to be…

A: Thermodynamic  - what is the branch of science which deals with the study of relation between  heat…

Q: Which Substance would have the greatest standard molar entropy?   N2(I) NO2(I) NO2(g) N2(g)

A: To find: The substance having the greatest standard molar entropy N2 (I) NO2 (I) NO2 (g) N2 (g)

Q: The entropy change for a reaction is -21.0 J/K.  If delta H is -10.0 kJ/mol, calculate Keq at 100o C…

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