Chlorofluorocarbons (CFCS) are no longer used as refrigerants because they catalyze the decomposition of stratospheric ozone. Trichlorofluoromethane (CCI3F) boils at 23.8°C, andi condensation of CCI3F()? molar heat of vaporization is 24.8 kJ/mol. What is the molar entropy of J/mol K

Q: Chlorofluorocarbons (CFCs) are no longer used as refrigerants because they destroy the ozone…

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Q: Chloroform, CHCl3, is a solvent and has been used as an anesthetic. The heat of vaporization of…

A: Given: No. of Moles=2.91 mol Boiling point=61.2+237.15K=334.35K The heat of vaporization= 29.6…

Q: "he heat of vaporization of carbon disulfide, CS2, at 25°C is 27.2 kJ/mol. What is the entropy…

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Q: What is the entropy change when 0.88 moles of CHCI: vaporizes at 61.0 °C? [AH(vap) = 29.6 kJ/mol at…

A: Number of moles = 0.88 moles  ∆H(vap) = 29.6 KJ/mol  Temperature = 61.0 °C  Entropy change = ?

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Q: The molar heats of fusion and vaporization of ethanol are 7.61 and 26.0 kJ/mol, respectively.…

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Q: Part A An object at 20∘C absorbs 25.0 J of heat. What is the change in entropy ΔS of the object?

A: Since you have posted multiple questions as per guidelines we can answer only one per session . if…

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Q: Chloroform, CHCl3, is a solvent and has been used as an anesthetic. The heat of vaporization of…

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A: Mass of water = 1.50kg or 1500 g  Temperature = 0°C or 273.15 K

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Q: Chloroform, CHCI3, is a solvent and has been used as an anesthetic. The heat of vaporization of…

A: Given : Moles of CHCl3 evaporated = 9.80 mol. Heat of vaporization of CHCl3, ΔHvap = 29.6 KJ/mol =…

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Q: 9. For any substance, the only case entropy has a zero value, when *

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Q: What is the entropy when 1.20 moles of CCLF2 vaporize at 25°C? [AH(vap) = 17.2 kJ/mol at 25°C]

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Q: Stephanie has 17.7 g of liquid carbon dioxide CO2 which vaporizes at its normal boiling point -78.46…

A: mass of CO2 = 17.7 g normal boiling point -78.46 °C   Molar mass of CO2 = 44.01 g/mol  Enthalpy of…

Q: Isomers are molecules that have the same chemical formulabut different arrangements of atoms, as…

A: a.

Q: Which substance has the higher entropy?(a) dry ice (solid CO2) at −78 °C or CO2(g) at 0 °C(b) liquid…

A: The substance which has higher entropy has to be predicted.

Q: What is the entropy when 1.34 moles of CCl₂F₂ vaporize at 25°C? [∆H(vap) = 17.2 kJ/mol at 25°C]

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Q: Rank the following substances in order of decreasing standard molar entropy (S°). Rank the gases…

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Q: What is the entropy when 1.53 moles of CCl,F2 vaporize at 25°C? [AH(vap) = 17.2 kJ/mol at 25°C]

A: Number of moles of CCl2F2, ∆H(vap) and the temperature for which entropy is to be determined.

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Q: 2) Given the thermodynamic data of ethanol below, calculate the change in entropy of 55.5 g of solid…

A: GIVEN:-

Q: Which process(es) listed below occur with an increase in entropy? (i) Water in the ocean warms up…

A: Entropy is a measure of the randomness of the molecules of a substance. For a spontaneous reaction…

Q: The molar heats of fusion and vaporization of ethanol are 7.61 and 26.0 kJ/mol, respectively.…

A: The enthalpy change involved in the process of conversion of liquid into vapor is known as enthalpy…

Q: entropy

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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…

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A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

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Q: What are the sign and magnitude of the entropy change for the reaction? Does the sign of Δ

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Q: What is the entropy when 1.36 moles of CCI,F2 vaporize at 25°C? [AH(vap) = 17.2 kJ/mol at 25°C]

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Q: Which substance has the higher entropy? Explain your answer. a. Dry ice (solid CO,) at -78°C or…

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Q: What is the entropy when 1.13 moles of CCl₂F₂ vaporize at 25°C? [∆H(vap) = 17.2 kJ/mol at 25°C]

A: The moles of CCl2F2 is = 1.13 moles The temperature of vaporization is = 25oC = 25oC+273.15 = 298.15…