er antimony, Sb, the heat of fusion at its normal melting point of 631 °C is 19.6 kJ/mol. ne entropy change when 2.36 moles of solid Sb melts at 631 °C, 1 atm is 1 J/K.

Q: Given the following information for benzene, C6H6:   What is the enthalpy change, in kJ, when…

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Q: 11. The mathematical equation that best defines the first law of thermodynamics is OA. AH = AU + pAV…

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Q: A certain liquid has a vapor pressure of 92.0 Torr at 23.0 °C and 396.0 Torr at 45.0 °C. Calculate…

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Q: A certain liquid has a vapor pressure of 92.0 Torr at 23.0 °C and 217.0 Torr at 45.0 °C. Calculate…

A: Given , Initial temperature , T1=23.0°C=(23+273)K=296 KVapor pressure , P1 = 92.0 torrFinal…

Q: 13. Using the given data of standard molar Gibbs free energy of formation, determine ArG (kJ) at 298…

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Q: certain substance has an enthalpy of fusion of 4.73 kJ/mol and an entropy of fusion of 21.2 J/mol/K.…

A: We know ∆H=∆S×T ∆H=4730j/mol ∆S=21.2j/mol/k So T=4730÷21.2=223.11k

Q: What is the entropy change (in J/K) of 85 g of steam at 100°C when it condenses to water at the same…

A: At phase transition, the entropy change is defined as the ratio of enthalpy change and temperature…

Q: Calculate the melting point of benzoic acid (C6H5CO2H), given the following data:       Δ Hfusion…

A: ΔSfusion is defined as the entropy of fusion which is the measurement of randomness or disorder.…

Q: Jj.10.   If 8.00 g of ice (at 0°C) were added to 60.0 g of water at 42.0 °C, what will the…

A: This problem is based on Thermodynamics better to say thermochemistry where we have to find the…

Q: use the data below to calculate the temperature at which the dissociation of I2(g) is 50% at 1 atm…

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Q: For water, ΔHfusion = 6.02 kJ/mol and ΔHvap = 40.65 kJ/mol.   If 0.250 moles of water vaporizes at…

A: ∆Ssurrounding   = - ∆Ssystem. ∆Ssurrounding    = - ∆Hvaporization / Tboiling.

Q: What is the change of entropy (in J/K • mol) of the universe from the given chemical equation at…

A: Given CH4​(g)=186.2 JK−1mol−1O2​(g)=205.0 JK−1mol−1CO2​(g)=213.6 JK−1mol−1H2​O(l)=69.9 JK−1mol−1 The…

Q: Consider a substance with a melting point of 176 K. If this substance is in a container at 115 K…

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Q: Write the formation equation for NaCl(g) that goes with this value of ΔH°.

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Q: 11. Chemical potential (u) is a molar Gibbs free energy (Gm). Consider the following graphs: (a) has…

A: The objective of this question is to explained by changes in molar volume.

Q: Calculate the final temperature of 100.0 mL of water (d=1.00 g/mL) at 19.0°C [p = 75.3 J/mol.°C)]…

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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: 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: lece of iron [c = ure of 57.0 °C and then placed Og piece of copper [c = 0.385 nsulated container.…

A: Given,  Mass of iron = 208 g Heat capacity of iron = 0.449 J/g-°c Mass of copper = 180 g Heat…

Q: The boiling point of CS2 is 315.7 K. At 475.0 K, the value for ΔGºrxn is -13.83 kJ/mol. From these…

A: boiling point of CS2 is 315.7 K At 475.0 K, the value for ΔGºrxn is -13.83 kJ/mol. We have to…

Q: Is it possible for an ice to have a higher entropy than water? Why?

A: Entropy is the measure of the randomness of the system. The more disordered the system more will be…

Q: A certain liquid has a vapor pressure of 92.0 Torr at 23.0 °C and 207.0 Torr at 45.0 °C. Calculate…

A:

Q: A 23.2 g piece of metal (C = 0.455 J/g oC) initially at 14.2 oC is placed in 35.2 g of water…

A:

Q: At what temperature does the Fe(s)  Fe(g) phase transition occur? (Hint: at phase transition point,…

A: Given: Fe(s)  <----> Fe(g)  ΔH = 415.5 kJ/mol ΔS = 153.4 J/mol · K.

Q: For nickel, Ni, the heat of vaporization at its normal boiling point of 2732 °C is 378.6 kJ/mol.…

A: Entropy change can be given by deltaS = deltaHvap/Tb deltaHvap = Heat of vaporization Tb = boiling…

Q: A certain liquid has a vapor pressure of 92.0 Torr at 23.0°C and 383.0 Torr at 45.0 °C. Calculate…

A: Answer :

Q: why do we use 8.314 J/mole k as the value for R in the determination of the heat of vaporization of…

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Q: How much energy is required to vaporize 54.7 g of dichloromethane (CH2Cl2) at its boiling point, if…

A: Given ΔHvap = 31.6 kJ/mol Mass of dichloromethane = 54.7 g Molar mass of dichloromethane = 85g/mol

Q: Given the following information, calculate the energy (in kcal) required to convert one ic cube that…

A: Mass of ice = 36 g Initial temperature = -18oC Final temperature = 37oC Number of moles of ice = 36g…

Q: A certain liquid has a vapor pressure of 92.0 Torr at 23.0 °C and 231.0 Torr at 45.0 °C. Calculate…

A: Given, P1= 92 torrT1=23°C =(23+273)K=296 KP2=231.0 torrT2=45°C =(45+273)K=318 K

Q: NH3 has a normal boiling point of –33.34°C, and its ΔHvap is 23.5 kJ/mol.  Calculate the molar…

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Q: Consider the vaporization process for carbon disulfide: CS₂ (1) →→→→CS₂(g) The boiling point of CS₂…

A: Given the vaporization process for carbon disulfide:    CS2(l)CS2(g) Boiling point of CS2  = 315.7…

Q: The heat of vaporization AH, of tetrahydrofuran (C4HO) is 32.0 kJ/mol. Calculate the change in…

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Q: The vapor pressure of Benzen is its vapor pressure at 20.0 °C (AH 80.1 °C in 1 atm. Calculate for…

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Q: Substance C (g) H: (9) CH. (g) Calculate AS° for C(g) + 2 H₂(g) →→ CH4(g). S* (J/mol. K) 158.1 130.6…

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Q: Hello. I have another question to ask. How can Ithe answer for this:   The sublimation of carbon…

A: 1- First calculate the moles of CO2 :  moles of CO2 = [ Mass / Molar mass ]  moles of CO2 = [ 84.8g…

Q: For n-pentane, C3H12, the heat of fusion at its normal melting point of -130 °C is 8.4 kJ/mol. The…

A: Given, 1.77mol of n-pentane Melting point = -130 degree celsius

Q: 29. The molar volume of a certain solid is 161.0 cm³/mol at 1.00 atm and 350.75 K, its melting…

A: Given that,  The initial pressure is P1 = 1.00 atm, The initial temperature is T1 = 350.75 K. The…

Q: The enthalpy of fusion (∆Hfusion) for the melting of water is 6.02 kJ/mol.  This phase change from…

A: The entropy change ∆S when a system gets a quantity of energy q at a constant temperature, T, is…

Q: Matter can change from one physical state (phase) to another without any change in chemical…

A: For each phase change, determine the sign of ΔPCH and ΔPCS. Use ΔH<0, ΔH>0, ΔS<0 and…

Q: HI has a normal boiling point of -35.7 and its ΔvapH is 21.16 KJ/mol. Calculate the molar entropy…

A: Chemical thermodynamics is branch of chemistry in which we deal with amount of heat evolved or…

Q: A compound melts at -55 ∘C and has a heat of fusion of 21 kJ/mol.  Calculate its change in entropy…

A: Melting point = -55°CT = (-55 + 273.15) K = 218.15 KHeat of Fusion = 21 kJ/mole = ∆H

Q: A certain liquid has a vapor pressure of 92.0 Torr at 23.0 °C and 223.0 Torr at 45.0 °C. Calculate…

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Q: A certain liquid has a vapor pressure of 92.0 Torr at 23.0 ∘C and 215.0 Torr at 45.0 ∘C. Calculate…

A: Given : Vapour pressure of liquid at 23 oC = 92.0 torrAnd vapour pressure of liquid at 45.0 oC =…

Q: Certain compound has a melting point of 801°C and a boiling point of 1465°C. The entropy of fusion…

A: Initial temperature (melting) = 801°C + 273 = 1074 K Final temperature (boiling) = 1465°C + 273 =…

Q: The normal boiling point of a substance is 433 °C. Calculate the pressure at which this substance…

A: this solution is done using the clausius-clapeyron equation .

Q: A certain substance has an enthalpy of fusion of 6.65 kJ/mol and an entropy of fusion of 22.8…

A: The entropy of fusion of the solid is given by: Where ∆S = change in entropy = 22.8 J/mol/K ∆H =…

Q: A 4.20 g of ice at 0 0C is melted on the surface of a 35.0 g of aluminum metal surface which is…

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Q: The normal melting point of ethylene glycol, C₂H6 O2, is -12.7 °C. For the process of melting, what…

A: