For cobalt, Co, the heat of vaporization at its normal boiling point of 3097 °C is 389.1 kJ/mol. The entropy change when 1.52 moles of liquid Co vaporizes at 3097 °C, 1 atm is ____ J/K

Q: silicon, Si, the heat of vaporization at its normal boiling point of 2355 °C is 297.1 kJ/mol. The…

A: The question is based on the concept of chemical thermodynamics. we have to calculate entropy of…

Q: For a particular reaction at 196.8 °C, AG = -1266.45 kJ, and AS = 529.15 J/K. %3D Calculate AG for…

A: For a particular reaction at 196.8°C(469.8 K) ;  ∆G = -1266.45 KJ, and ∆S = 529.15 J/K The change in…

Q: At 25°C, the formation of ammonia from its elements results in a decrease in entropy (∆SRXN = -197…

A: According to the question about the formation of ammonia we have, The Change (decrease) in the…

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: 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: 5. The change in entropy for condensing 51 g ammonia (NH3()NH3) at its boiling point (240K) is 293…

A: The mass of ammonia given = 51gThe entropy given = 293J/K

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: Does someone know the standard entropy values in J/K for H2(g), F2(g) and HF(g)?

A: The standard entropy values of hydrogen and fluorine gases are 130.6 J/Kmol and 202.8 J/Kmol…

Q: The boiling point of a substance is 35.0 degrees C and its heat of vaporization is 27.5 kJ/mol.…

A: Given-> Boiling point = 35°C = 35 + 273 = 308 K Heat of vaporization (∆Hv) = 27.5 KJ/mole  ∆Hv =…

Q: Consider the following reaction under the standard state. 2 NO3 (g) = 2 NO2 (g) + O2 (g) The…

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Q: At 25°C, the formation of ammonia from its elements results in a decrease in entropy (∆SRXN = -197…

A: we have to calculate the value of ∆SUNIV

Q: For cadmium, Cd, the heat of vaporization at its normal boiling point of 765 °C is 100.0 kJ/mol.…

A: Answer: During the phase transition temperature of the system remains constant. Given data:…

Q: For magnesium, Mg, the heat of fusion at its normal melting point of 649 °C is 9.0 kJ/mol. The…

A: Ans Heat of fusion is the amount of heat added when one mole of solid convert to the liquid. Heat of…

Q: What is the entropy change (in J/K) associated with the formation of 15.0 g of SO2 for the reaction…

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Q: 2CO2(g) + H2O(l) --> C2H2(g) + 5/2O2(g)  = 1300.0 kJ H2(g) + 1/2O2(g) --> H2O(l)  = -286.0 kJ CO2(g)…

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Q: It takes 38.6 kJ of energy to vaporize 1.00 mol of ethanol (MW: 46.07 g/mol). What will be ΔSsys for…

A: The amount of energy required to vaporize 46.7 g of ethanol is 38.6 kilojoules. The amount of heat…

Q: A certain substance has an enthalpy of fusion of 4.57 kJ/mol and an entropy of fusion of 20.4…

A:

Q: A metal alloy melts with an enthalpy change of 75 kJ/mol and an entropy change of 133.0 J/K.mol.…

A: For the melting of alloy, Enthalpy change (∆H) = 75 kJ/mol…

Q: Calculate the entropy change (in J/K) that occurs when 15.3 g of ice melts at its normal melting…

A: we have to calculate the entropy change

Q: entropy change

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Q: Calculate the entropy change (in J/K) that occurs when 31.7 g of ice melts at its normal melting…

A: we have to calculate the entropy change

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: The boiling point of ethanol is 173.1 F. In an experiment the entropy change for the reaction…

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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: g_2021 [References] Chloroform, CHC13, is a solvent and has been used as an anesthetic. The heat of…

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Q: Potassium nitrate is mixed into water which causes an endothermic reaction.  The initial water temp…

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Q: Hydrogen sulfide decomposes according to the following reaction: 2H2S(g) → 2H2(g) + S2(g) - For this…

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Q: Item 1 I Review | Constants | Periodic Table Elemental carbon usually exists in one of two forms:…

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Q: What is the entropy change of the universe when 5.74 mol of ice melts at temperature is 25.8oC?…

A: Answer: Entropy is the measure of system's disorderliness or randomness. In more possible states…

Q: What is the entropy change (in J/K) when 43.3 g of liquid sulfur at its melting temperature of…

A: Answer:Entropy is the measure of system's disorderliness or randomness. In more possible microstates…

Q: What is the entropy change, in J mol-1 K-1, when 100.0 g of water boils at 100.0 oC?…

A: ∆Hvap= 40.7 kJ/mol = 40.7 × 1000 J/mol Water boils at 100°C = 373 K For the vapourization of water,…

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

A:

Q: What is the entropy change when 1.55 moles of CHCl₃ vaporizes at 61.0 °C? [∆H(vap) = 29.6 kJ/mol at…

A:

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: Calculate the entropy change when 36.0g of water (bp = 100ºC; MM = 18.0g/mol) boils at 93ºC. The…

A: Entropy is the measure of the randomness present in the system. Enthalpy is the total heat content…

Q: Calculate the entropy change when a gas condenses at its boiling point. Calculate the entropy change…

A: Given:Moles of mercury = 2.47 molBoiling point of mercury = 357 °CThe heat of vaporization of Hg =…

Q: Freon 11 (CCl3F) was a favored refrigerant until it was found to be detrimental to the atmospheric…

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Q: For mercury, the enthalpy of vaporization is 58.51 kJ/mol and the entropy of vaporization is 92.92…

A: Given that, Entropy of vaporization of mercury (ΔSvap) is 92.92 J/K⋅mol Enthalpy of vaporization of…

Q: о Example: What is the temperature range in which the following reaction is spontaneous? N₂+ 3H2 →…

A: The problem is asking for the temperature range in which the reaction of nitrogen and hydrogen to…

Q: Given the particulate models here that depict Cu in solid form, Br2 in liquid form, and He in…

A: The change in entropy of copper when converted to a gas :Given:S° for Cu(s) = 33.2 J/(mol•K)S° for…