The heat of vaporization AH, of heptane (C,H16) is 31.2 kJ/mol. Calculate the change in entropy AS when 48. g of heptane condenses at 98.4 °C. Be sure your answer contains a unit symbol and the correct number of significant digits. ? olo

Q: Given: Phosgene, COCl2, can be formed by the reaction: 2CHCl3(l)  + O2(g) ⟶ 2COCl2(g)  + 2HCl(g).…

A: Generally the enthalpy change of reaction is determined by using following formula.

Q: The heat of vaporization AH, of methanol (CH;OH) is 35.3 kJ/mol. Calculate th

A: If   vapourisation of methanol       CH3OH(l)     ⇔  CH3OH(g)    △Hv = 35.3 KJ/mol     then…

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

A:

Q: A reaction has ΔH∘rxn= -134 kJ and ΔS∘rxn= 320 J/K.  At what temperature is the change in entropy…

A: Given: -ΔH°rxn = -134 KJΔS°rxn = 320 J/KIf everything is carried out at a constant temperature and…

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

A: For spontaneous reaction ∆G<0 , For non-spontaneous reaction ∆G>0 Where ∆G is change in Gibbs…

Q: The heat of vaporization AH, of ethanol (CH3CH₂OH) is 38.6 kJ/mol. Calculate the change in entropy…

A:

Q: The heat of fusion aH, of butane (C,H10) is 4.7 kJ/mol. Calculate the change entropy As when 75. g…

A:

Q: For the reaction H2(g) + F2(g). - 2 HF(g) AG° = -546.2 kJ and ASO - 14.1 J/K at 281 K and 1 atm.…

A: According to the second law of thermodynamics, the spontaneous nature of the reaction is determined…

Q: The heat of vaporization AH, of ethyl acetate (C4HO₂) is 35.1 kJ/mol. Calculate the change in…

A: Given, Heat of vaporization of ethyl acetate (∆Hvap) = 35.1 kJ/mol Change in entropy (∆S) = ? Mass…

Q: Consider the reaction: 3 A(g) + B(g) → 2 C(g) + 2 D(g) kJ AH°rxn = -1750. Calculate the heat of…

A: The heat of reaction: Heat of Reaction is also known as Enthalpy of Reaction. It is the change in…

Q: Calculate the ΔH for the reaction: B2H6(g) + 6Cl2(g) → 2BCl3(g) + 6HCl(g) The following are given:…

A: The enthalpy change is a state function and the Hess law states that the change of enthalpy in a…

Q: Is the following reaction spontaneous at room temperature (25.0 °C) ? 2 H2S(g) + 3 O2(g) 2 SO2(g) +…

A: Interpretation: The given reaction is spontaneous at room temperature or not is to be determined. At…

Q: When 12.0 g (0.100 mol) of MgSO,(s) is dissolved in water in a constant pressure calorimeter, the…

A:

Q: If the entropy of a reactions is -264.54 J/ mole K and the enthalpy of the reaction is 117.63 kJ/…

A:

Q: Suppose 50.0 g of solid bromine at its melting point of -7.2oC is heated, eventually producing…

A: We need to find which of the given steps will need maximum heat energy

Q: When heated, CaCO, decomposes into CaO and CO, according to the following equation: CaCO,(s)= CaO(s)…

A: The importance of Gibbs energy is that it gives information about the spontaneity of the reaction or…

Q: Pure lead melts at 460/deg C. Given that the heat of fusion is 1750 cal/mol, calculate the entropy…

A: The objective of the question is to determine the total entropy change.It is given that,The mass  of…

Q: The heat of vaporization AH, of carbon disulfide (CS2) is 26.74 kJ/mol, Calculate the change in…

A: Below attached file showing the details answer. All the best.

Q: The heat of vaporization AH, of acetonitrile (CH3CN) is 29.8 kJ/mol. Calculate the change in entropy…

A: ∆Hv=29.8 kJ/mol Mass of acetonitrile = 390 g Temperature = 81.6°C=273+81.6K=354.6 K Molar mass of…

Q: 5. Sodium acetate dissolves in water according to the following equation: NAC2H3O2 (s) Nat (ag) +…

A: Given process is :  NaC2H3O2 (s) -----> Na+(aq) +C2H3O2-(aq)

Q: For the reaction 2 Fe(s) + 3 Cl2(g) →2 FeCl3(s) AG° = -655.5 kJ and AS° = -440.3 J/K at 326 K and 1…

A: Since ΔG0 = -RTln(K) where K = equilibrium constant  ΔG0  in J = -655500 J  R = constant = 8.314  T…

Q: The heat of vaporization AH, of methanol (CH,OH) is 35.3 kJ/mol. Calculate the change in entropy AS…

A:

Q: The heat of vaporization AH, of acetonitrile (CH, CN) is 29.8 kJ/mol. Calculate the change in…

A: Given data: Heat of vaporization of CH3CN = 29.8 kJ/mol Mass of CH3CN = 35 g Molar mass of CH3CN =…

Q: The heat of fusion AH, of tetrahydrofuran (CH,O) is 8.5 kJ/mol. Calculate the change in entropy AS…

A: The heat of fusion,∆Hf = 8.5 kJ/mol, the melting point of tetrahydrofuran = -108.5 °c Mass of…

Q: If the entropy of a reactions is -264.54 J/ mole K and the enthalpy of the reaction is 117.63…

A:

Q: The heat of vaporization AH, of propane (C3Hg) is 19.4 kJ/mol. Calculate the change in entropy AS…

A: For vaporization: Change is entropy  = enthalpy of vapourization ÷ Boiling pointChange in entropy =…

Q: The heat of vaporization AH, of acetic acid (HCH3CO₂) is 41.0 kJ/mol. Calculate the change in…

A:

Q: The heat of fusion AH, of methanol (CH,OH) is 3.16 kJ/mol. Calculate the change in entropy AS when…

A: Heat of fusion of ethanol = 3.16 KJ /molweight of ethanol = 23 gMelting temp. = -98.0 °C…

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

A:

Q: A 0.576 g sample of liquid C5H12 was combusted using excess oxygen gas inside a bomb calorimeter,…

A: Given, mass of the sample is 0.576 g of liquid C5H12  Heat capacity of calorimeter is 4.957 Kj/°c…

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

A: Given,  The heat of vaporisation of heptane, ∆Hv = 31.2 kJ/mol           = 31.2x103 J/mol  Mass of…

Q: Acetic acid, CH3COOH, freezes at 16.6°C. The heat of fusion,
Hfus, is 69.0 J/g. What is the change…

A:

Q: The heat of vaporization AH, of acetonitrile (CH,CN) is 29.8 kJ/mol. Calculate the change in entropy…

A:

Q: The heat of fusion AH, of acetic acid (HCH₂CO₂) is 11.7 kJ/mol. Calculate the change in entropy AS…

A: Given: The heat of fusion of acetic acid = 11.7 kJ/mol We have to calculate the change in entropy…

Q: The heat of vaporization AH, of ethanol (CH,CH,OH) is 38.6 kJ/mol. Calculate the change in entropy…

A: Ethanol condenses at  78.4 degrees C and heat of vaporization, is 38.6 kJ/mol. We know during phase…

Q: A reaction has AH = -112 kJ and ASan = 354 J/K. At what temperature is the change in entropy for the…

A: The given data contains, ∆H°reaction=-112 kJ∆S°reaction=354 J/K

Q: For reaction                  Na2CO3(s) + 2HC(g) -> NaCl(s) + CO2(g) -> H20(l) ΔH is -144.1 KJ.…

A: The reaction and mole difference will be Na2CO3s + 2HClg →NaCls + CO2g + H2Ol∆n = Product moles -…