Chlorofluorocarbons (CFCs) are no longer used as refrigerants because they destroy the ozone layer.Trichlorofluoromethane (CCl3F) boils at 296.95 K, and its molar heat of vaporization is 24.8 kJ/mol. Calculate the molar entropy of evaporation of CCl3F(ℓ).     kJ/K

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

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Q: Calculate the entropy change of the universe (J/mol-K) when the entropy change of the system is 75.4…

A:

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

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

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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: A chemical reaction has a enthalpy change of 171.8kJ and change in entropy of 788.3 J/K. what is the…

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A: Given : Initial temperature = 250C = 298 K Final temperature = 150C = 288K

Q: The Second Law of Thermodynamics states, the entropy of the universe is always increasing, ∆Suni >…

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Q: Calculate the entropy change that occurs when 1.00 mol of water freezes at its freezing point.

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Q: Trichlorofluoromethane (CCl3F) boils at 296.95 K, and its molar heat of vaporization is 24.8 kJ/mol.…

A: The molar entropy of evaporation can be calculated by dividing the amount of vaporization of heat by…

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 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: the

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Q: For ammonia, the enthalpy of fusion is 4.65 kJ/mol and the entropy of fusion is 38.9 J/Kmol.…

A: Given that For ammonia, the enthalpy of fusion(∆H°) is 4.65 kJ/mol and the entropy of fusion(∆S°) is…

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: 46. Which of the following involves a decrease in entropy? A) the sublimation of solid CO2 into CO2…

A: The correct answer about entropy is given below

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: Which of the following cases has a decrease in entropy? Vaporization of water. Formation of H20 (g)…

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

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Q: A certain liquid substance boils at 84.7 °C (at 1 atm) and has a standard enthalpy of vaporization…

A:

Q: Which reaction is most likely to have a decrease in entropy? O NaCl(s) → Na*(aq) + Cl(aq) O 2 NH3(g)…

A: When the reaction shows the positive entropy change then the reaction is spontaneous.

Q: Calculate the entropy change of the universe (J/mol-K) when the entropy change of the system is 38.4…

A: Given the entropy change of the system, ∆Ssystem = 38.4 J/mol-K

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

A: We have:   Thus, the amount of energy required to boil 1.44 moles of CHCl3 is:

Q: TRUE OR FALSE 1. Lowering the temperature of the system will lead to an increase in entropy. 2.…

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

Q: Phase transitions must be included when considering entropy What is the final temperature when 5.20…

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Q: A certain liquid substance boils at 53.3 °C (at 1 atm) and has a standard enthalpy of vaporization…

A: The boiling point of the given substance is = 53.3oC = 53.3oC+273.15 = 326.45 K The standard…

Q: Consider the following reaction at 25 °C: 5 SO₃(g) + 2 NH₃(g) → 2 NO(g) + 5 SO₂(g) + 3 H₂O(g) If ∆H°…

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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: What is the entropy change of the system in J/K for the reversible cooling of one mole of copper…

A:

Q: What is the change of entropy in the vaporization of 5 grams of ice cube at 0C to steam at 100 C.…

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Q: Which of the following processes results in the largest decrease in Entropy? The heat of fusion of…

A: Entropy an be defined as the thermal energy per unit temperature that is unavailable for doing a…

Q: 5. The entropy change of the process H2O (s) H2O () is 22 J/K at 0 °C. Calculate the enthalpy of…

A: H2O(s)↔H2O(l)∆H=22J/KT=0∘C=0+273K=273K∆S=∆HT