a) For n-hexane the vaporization enthalpy and entropy are given (AHvap = 29.6 kJ mol‍ 1; ASvap = 86.5 J mol‍¹ K-1). Calculate the boiling point when ambient conditions are used. b) Compare AHvap and ASvap. Which of the two values is nearly unchanged for many "normal" substances? Is there a behaviour or rule? Which compounds have an abnormal behaviour and why?

Q: A slow heat release pack is to be marketed based on mixing an anhydrous solid with just enough water…

A: During the production of one mole of compound, change in enthalpy takes places, this change in…

Q: Find AS for the system, surroundings, and universe when 27.9 g of liquid H₂O is evapourated at 100.0…

A: According to the question, The mass of the water = 27.9 gThe temperature of the evaporation =…

Q: Calculate the boiling point for a substance with ΔHoliquid = 49.1 kJ/mole , Soliquid = 173.4…

A: Answer:- This question is answered by using the simple concept of calculation of boiling point using…

Q: The boiling point of 1-propanol is 97.2 °C and the standard enthalpy of formation of 1-propanol…

A: Given,The standard enthalpy of formation of 1-propanol vapor = -255.1 kJ/molThe standard enthalpy of…

Q: 6. A vapor volume of 1.17 L forms when a sample of liquid acetonitrile, CH3CN absorbs 1.00 kJ of…

A: Volume (V) = 1.17 L Boiling point= 81.6°C = 81.6 + 273 = 354.6 K Pressure (P) = 1.0 atm

Q: The molar enthalpy of vaporization of benzene at its normal boiling point (80.09° C) is 30.72 kJ…

A: Given: ∆VapHm=30.72 KJ/mol.The normal boiling point of benzene=80.090C

Q: From the ∆H calculated above and the number of moles of acid neutralized in each case, calculate the…

A:

Q: This industrial chemical reaction process generates nitrogen monoxide, an important component in the…

A: The standard enthalpy of formation of O2,N2 are zeros, since they are already present in their…

Q: Using the data in Appendix 4, and AHf =-36.40 kJ/mol and S° = 245.91 J/mol K for CH3 Br, determine…

A: ∆H°f = - 36.40 kJ/mol ∆S° = 245.91 J/mol.K Temperature = T = = 298 K ∆G° = ? ( Gibbs free energy )…

Q: his question requires the use of the extracts from the tables of thermodynamic properties supplied.…

A: Specific enthalpy: Specific enthalpy is the enthalpy per unit mass of a system. Constant-pressure…

Q: An air sample contains 10% H2O(g) by mole   at 100 °C, 1 atm. a.At what temperature would be the…

A: Given information: Composition of H2O = 10% Temperature = 100 °C Pressure = 1 atm

Q: 6. If you added a 10 gram metal piece at 100 °C to 100 mL of water at 0 °C or at 20°C, which…

A: According to heat transfer (Calometry) principle- heat is transferred from the body of higher…

Q: The heat of vaporization AH, of heptane (C₂H₁6) is 31.2 kJ/mol. Calculate the change in entropy AS…

A: Given that -  Mass of heptane = 26 g  Temperature = 98.4 °C = 371.4 K  Heat of vaporization = 31.2…

Q: 1.1 moles of a molecule that has hydrogen bonding are placed in a flask.  The enthalpy of fusion is…

A: Step 1:

Q: For bismuth, Bi, the heat of fusion at its normal melting point of 271 °C is 11.0 kJ/mol. The…

A: Given- ∆Hfusion = 11.0 kJ/mol Melting point = 271 °C Moles of Bi = 2.42 Pressure = 1 atm   To find-…

Q: A chemist was investigating the polymerisation of methanol for the synthesis of propene (C3H6) by…

A: The given data: The enthalpy change of the reaction( ∆Hr)  = -101.18 kJ/mol The entropy change of…

Q: For ether, C2H5OC2H5, the heat of fusion at its normal melting point of -116 °C is 7.3 kJ/mol. The…

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

Q: Determine AG° for the phase change CO2(g)→ CO2(aq) at 25°C. AH° = -19.4 kJ/mol %3D AS° = +92.3…

A:

Q: When 375.0g of iron block is 87C was added to water at 15C, the system reached 33C. What mass of…

A: The energy of a system always remains the same. It is only transferred from one substance to…

Q: 30. The molar heat of vaporization of phosphine is 14.6 kJ/mol and phosphine’s boiling point is…

A: During the vaporization, the entropy of the system is increased. The molar heat of vaporization of…

Q: The heat of vaporization AH, of toluene (C,H,CH,) is 38.1 kJ/mol. Calculate the change in entropy as…

A:

Q: The summer before coming to school, you are lucky enough to get a job making coffee at Starbucks,…

A: According to the question, The volume of coffee = 250.0mlInitial temp of coffee = 95°C Initial Temp…

Q: Determine AS for the phase change of 1.48 moles of water from solid to liquid at 0°C. (AH = 6.01…

A: As the phase change can be carried out reversibly, ΔS  =  6.01 kj/mole / 273 K  = 0.022 kJ/molK.

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: what is the heat of vaporization for toluene Calculate the enthalpy of vaporization for toluene in…

A: Clausius-Clapeyron Equation P∝exp(-∆HvapR)   ln(P1P2) =-∆HvapR(1T1-1T2)   where, ∆Hvap =Enthalpy of…

Q: 3. At 105 °C, 0.5 mol of liquid water vaporizes into steam spontaneously because AS of the universe…

A: Answer: Spontaneity of a process can be checked with the help of Gibbs free energy change. For a…

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

A:

Q: What is the standard Gibbs free energy for the transformation of diamond to graphite at 298 K?…

A: The given reaction is as follows: Cdiamond → Cgraphite The standard Gibbs free energy = ?

Q: these two reactions: Reaction 1: 2OF2(g)⟶O2(g)+2 F2(g)ΔH=−49.4 kJ  Reaction 2:…

A: ->A reaction is spontaneous if ∆G<0 ->A reaction is non spontaneous if ∆G>0

Q: An unknown compound has a melting point of 500°C and an enthalpy of fusion of 1.2 kJ/mole. Determine…

A: We have melting point of 500°C, enthalpy of fusion as 1.2 KJ/mole. We have to calculate the change…

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: The heat of vaporization AH, of butane (C4H₁0) is 21.0 kJ/mol. Calculate the change in entropy AS…

A: The change in entropy can be calculated as follows

Q: Calculate the amount of energy needed to raise the temperature of 140 grams of liquid water from…

A:

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: There is 560 grams of water steam at 100 degrees celcius that's condensed to water at 100degrees…

A:

Q: Table 2. Gibbs Free Energies of formation (kJ), ∆G°f, for Ions in 1M Solution and Ionic Solids…

A:

Q: AvapH = 47 kJ/mol AvapS = 121 J/K.mol

A:

Q: The normal boiling point of benzene is 80.0°C with an enthalpy of evaporation of 30.5 kJ/mol.…

A: Any substance's phase change gets accomplished at equilibrium. When liquid-phase gets converted into…

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 heat of fusion AH, of carbon disulfide (CS₂) is 4.39 kJ/mol. Calculate the change in entropy AS…

A: we have to calculate the change in entropy for carbon disulfide

Q: For bismuth, Bi, the heat of fusion at its normal melting point of 271 °C is 11.0 kJ/mol. The…

A: Given, heat of fusion(∆H) of Bi at its normal melting point 271°C = 11.0 kJ/mol = 11000 J/mol

Q: Calculate the change in entropy (J/mol·K) for the surroundings for a reaction where ΔH° = 126.9…

A: