entropy

Q: Rank the following substances in order of increasing standard molar entropy. (Please use the numbers…

A: Here, we have to rank the given substances in order of increasing standard molar entropy (S°). Given…

Q: Consider the following reaction: 2 NO(g)  N2(g) + O2(g) The enthalpy change at 298 K for this…

A: The given equilibrium reaction is  2 NO(g) ---------->  N2(g) + O2(g) The enthalpy change at 298…

Q: For each pair of substances choose the one with the higher standard molar entropy and explain your…

A: a) NaNO3(s); NaNO3(l) NaNO3(l) will have higher standard molar entropy than NaNO3(s) Because in…

Q: The enthalpy for a certain process is 121.9 kJ/mol and the entropy for the process is 454.8 J/K.  At…

A: We are given that, ∆H = 121.9 KJ/mol = 121.9 × 10^3 J/mol  ∆S = 454.8 J/K

Q: For each pair of substances choose the one with the higher standard molar entropy and explain your…

A: The measurement of disorderness is especially done by entropy. Higher the disorderness (randomness),…

Q: he boiling point of a certain pure liquid is 71.5°C and the enthalpy of vaporization is 26.5 kJ/mol…

A: According to Gibbs formula     ∆G = ∆H - T∆S  at equilibrium i.e Vaporization liquid ⇔ Vapour ∆G…

Q: Which of the following substances exhibits the greatest standard molar entropy, So? Select one: H2…

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Q: PCI3 boils at 76.1°C, determine the entropy of vaporization given the thermochemical information…

A: Given,

Q: 6. Calculate AG for the combustion of propane. C3H8(g) + 50₂(g) → 3CO₂(g) + 4H₂O(g) C3H8(g) -24.5…

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Q: Determine the standard entropy of N2(g) given the following information: N2(g) + 3H2(g) --> 2 NH3(g)…

A: Entropy is the property of the system which measures the degree of disorder or randomness in the…

Q: Calculate the change in entropy associated with the production of ammonia from nitrogen and hydrogen…

A: Solution:     Change in entropy is the measure of degree of randomness or disorder in the system. It…

Q: Suppose a compound could point in any of three directions in the solid and still have the same…

A: • This problem is based upon the third law of thermodynamics.  • This law can be given as, Total…

Q: The normal boiling point of water is 100.0 °C and its molar enthalpy of vaporization is 40.67…

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Q: What is the entropy change when 2.50 moles of CCl₂F₂ vaporizes at 25.0 °C? [∆H(vap) = 17.2 kJ/mol at…

A: Given data is  Moles of CCl2F2 vaporized  = 2.50  ∆H(vap) = 17.2 kJ/mol at 25.0 °C

Q: Consider the following half-reactions: F2(g) + 2 e ® 2 F(aq) E° = +2.87 V Cu2+(aq) + 2 e ® Cu(s)…

A: You have asked multiple type questions, we will solve only first  questions for you. If you want any…

Q: 1: Above what temperature does the following reaction become nonspontaneous? FeO(s) + CO(g) → →…

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Q: The standard enthalpy change and standard entropy change for the reaction are: A,HP = -666.2 kJ…

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

Q: What charge, in coulombs, is required to deposit 0.205 g Ag(s) from a solution of Ag *(aq)? О а. 197…

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Steam is condensed at 100 ‰, and the water is cooled to 0 ‰and frozen to ice. What is the molar…

A: Entropy change is given by ∆S=∆H/T ,where ∆H is change in enthalpy and T is temperature.

Q: If the AH = 287 kJ/mol and AS = 57 J/K mol for a nonspontaneous reaction, at what temperature does…

A: Thermodynamics is branch of chemistry in which we deal with amount of heat evolved or absorbed by…

Q: What is the entropy change when 2.30 moles of CCl₂F₂ vaporizes at 25.0 °C? [∆H(vap) = 17.2 kJ/mol at…

A: Answer: Entropy is the measure of randomness of the system. In more possible states system can…

Q: Which process results in an entropy change less than 0?

A: Entropy (s) :-  Entropy is a measure of randomness or disorderness present in the system If in a…

Q: You make tea with 0.250 (kg) of 80.0 ("C] water and let it to cool to 20.0 ['C) before drinking it.…

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Q: For water, H2O, the heat of vaporization at its normal boiling point of 100 °C is 40.7 kJ/mol. The…

A: The heat of vaporization of the water at its boiling point is = 40.7 kJ/mol The moles of water is…

Q: The standard enthalpy change and standard entropy change for the reaction are: AHP = -1036.0 kJ mol1…

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Q: Determine the standard entropy of N2(g) given the following information: N2(g) + 3H2(g) = 2NH3(g);…

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Q: The CO2 sublimation heat is 16.2 kJ/mol and the entropy value of sublimation is 88.5 joules/mol. k…

A: Sublimation is the process in which solid subtance directly converted into gaseous form.  Chemical…

Q: Fe2O3(s) + C(s) ... Fe(s) + CO2(g) change H  467.9 kJ change S 560.3 J/K change G 301.3 kJ…

A: ΔG = ΔH - TΔS ΔG = Change in free energy ΔH = change in enthalpy ΔS = change in entropy T =…

Q: The enthalpy for a certain process is 146.4 kJ/mol and the entropy for the process is 463.6 J/K.  At…

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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: The boiling point of a certain pure liquid is 78.9°C and the enthalpy of vaporization is 46.4 kJ/mol…

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Q: Calculate the entropy change of 63.4 g of water that freezes into ice at 273.15 K. AHfug for water…

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Q: 32. The enthalpy and entropy of vaporization of ethanol are 38.6 kJ/mol and 109.8 J/mol · K,…

A: The objective of the question is to find the boiling point of ethanol given the enthalpy and entropy…

Q: 16. The standard enthalpy of vaporization of methanol is 35.2 kJ/mol at its normal boiling point,…

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Q: Determine the standard entropy of NO(g) given the following information NO(g)+0,(g) → NO,(g) ASn =…

A: Introduction: We have to calculate the entropy for NO(g).