PE6.2 Calculate the standard molar Gibbs free energy change (AGran) at 298 K and at 400 K for the following reaction (the cyclotrimerization of ethene to benzene), assuming that all heat capacities are independent of temperature: 3 CH(g) → CoH(g) +3 H2(g).

Q: For nitrogen gas the values of Cv and Cp at 25°C are 20.8 J K−1 mol−1 and 29.1 J K−1 mol−1,…

A: Hello. Since your question has multiple questions, we will solve the first question for you. If you…

Q: The heat capacity of chloroform (trichloromethane, CHCl3) in the range 240 K to 330 K is given by…

A: Given information: Chloroform (CHCl3) is heated from 273 K to 300 K, here to calculate the change in…

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Q: HNO2(aq) + OH (aq) H20(1) + NO2 (aq) K= 4.5×1010 What is the standard change in Gibbs free energy at…

A: Given :- K = 4.5 × 1010                T = 25 °C                 R = 8.314 J/K.mol  To calculate :-…

Q: Look up the boiling point of benzene. Then calculate the change in Gibbs Free Energy for che…

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Q: (b) Calculate the increase in entropy when 1.00 mol of a monatomic perfect gas with Cp,m = (5/2)R is…

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Q: How absolute values of standard molar entropies (S8) can be obtained because the third law of…

A: The degree of randomness in a system is measured in terms of entropy. The higher the entropy greater…

Q: What is the maximum work (in kJ) that can be done with the combustion of 1.0 mole of methanol at 298…

A: W = -∆nRT  Where W = work  ∆n = change in moles       = Sum of coefficients of gaseous product- sum…

Q: E2C.8(b) Estimate AH®(750 K) for the reaction N,(g) + H,(g) → NH,(g) from the listed value of the…

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Q: 3. Consider the dissociation of molecular hydrogen gas into atomic hydrogen gas: H2 (g) → 2 H(g).…

A: Given: Dissociation of molecular hydrogen-  H2 (g) →2H (g) At 298 K, H-H bond enthalpy is 436 kJ/mol…

Q: Calculate the entropy change of the surroundings when 1 mol of a perfect gas expands isothermally…

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Q: Estimate the standard internal energy of formation of liquid methyl ethanoate, CH3COOCH3, at 298 K…

A: Interpretation: The standard internal energy of formation of liquid methyl ethanoate, CH3COOCH3, at…

Q: Consider a process in which an ideal gas changes from state 1 to state 2 in such a way that its…

A: State functions: These functions depend only on the state and not on the path it underwent to reach…

Q: For the combustion of 1.00 mol of toluene, C7H8 , at 25 °C and 1.00 bar, calculate the work that…

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Q: 4. Calculate the change in entropy if 3 moles of a gas undergo an isothermal, reversible expansion…

A: Entropy is a measure of randomness of system due to excess of energy in it  In isothermal condition…

Q: Assuming ideal gases reactants and products. Estimate the enthalpy of reaction hR for the combustion…

A: The enthalpy of vaporization of water is defined as the amount of heat energy required to vaporize a…

Q: CALCULATE THE CHANGE OF ENTROPY OF GAS WHEN 16.08g of N2 nitrogen expands isothermally from 0.82L to…

A: Given information, Mass of nitrogen (m) = 16.08 g Temperature (T) = 290.7 K Initial Volume (V1) =…

Q: What is the change in entropy for the isothermal transition of 1 mole of water to ice at a…

A: We know , the  change in entropy for the isothermal transition , ∆S =(Q/T) Where Q = latent heat of…

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A: Given: Temperature=298K Formula: The standard entropy of the reaction can be calculated by using the…

Q: The heat capacity at 1 atm. pressure of solid magnesium in the temperature range from 0 oC to 560…

A: The increase of entropy per g. atom is to be calculated.

Q: Estimate the enthalpy of vaporization of water at 92.9 °C from its value at 25 °C (44.01 kJ mol−1),…

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Q: For an isothermal and isobaric process that has AU = 100 kJ/mol, AH = 125 kJ/mol and AS = 225…

A: In thermodynamics, the Helmholtz free energy is a thermodynamic potential that measures the useful…

Q: The temperature of a block of iron (Cv,m = 25.1 J K-1 mol- 1) of mass 1.4 kg fell by 65 °c as it…

A: The number of moles of iron equivalent to 1.4 kg of iron is; nFe=1.4 kg×1000 g1.0 kg×55.845…

Q: The standard enthalpy of combustion of propane, C3Hg, is -2.220 x 103 kJ mol-1 at 400 K. Use the…

A: Given :  ∆H° for combustion of methane at 400 K  = -2.220 x 103 KJ/mol  T1 = 400 K  T2 = 600 K

Q: Given the heat capacities at constant pressure, Cp, in J/(K mole) for the substances A, B, and C as…

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Q: P3C.6 Use values of enthalpies of formation, standard entropies, and standard heat capacities…

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Q: For the isothermal expansion of a gas into a vacuum, ∆E = 0, q = 0, and w = 0. (a) Is this a…

A: For the given system, the change in entropy of the system is positive because the measure of the…

Q: For the isothermal expansion of a gas into a vacuum, ∆E = 0, q = 0, and w = 0. Explain why no work…

A: For isothermal expansion, we need to provide heat to the system. Hence heat and work done  have…

Q: 4. When 2.5 mol CO2 is heated at a constant pressure of 1.25 atm, its temperature increases from 250…

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Q: What is the difference in entropy between 25 g of N2 at standard conditions and 25 g of N2 at 400 °C…

A: The measure of disorderness in a thermodynamic system is called entropy. The entropy change is given…

Q: 2. When 4.0 mol O, is heated at a constant pressure of 1.0 atm, its temperature increases from 250 K…

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Q: The molar heat capacity at constant pressure for CO(g) is 6.97 cal mol-1 K-1. How much heat in cal…

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Q: The standard enthalpy of formation of gaseous H20 at 298 K is -241.82 kJ/mol. V heat capacities at…

A: Given reaction is                  H2 (g)  + 1/2 O2 (g)   -->  H2O (g)    molar heat capacity…

Q: For a process that occurs at a constant temperature, does the change in Gibbs free energy depend on…

A: The Gibbs energy change can be defined by the expression as- ∆G=∆H−T∆S where ΔG: Gibbs Free Change…

Q: Consider the thermodynamic quantities E, 9, and w. Which of these quantities are state functions?

A: Examples of state functions ΔΗ,-ΔG ,ΔΤ Examples of path functions - work (w) - heat (q)…

Q: 4) Consider the isothermal expansion of a 1.00 mol sample of ideal gas at 37 from the initial…

A: Dear student ,   since you have posted multiple parts questions we are allowed to solve only first…

Q: What is the entropy change

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Q: Calculate the entropy change of the surroundings in J K-1.

A: The entropy change of the surrounding is needed to be calculated.

Q: Calculate the measurable change in entropy (for the system) when the state of 2.00 mol of diatomic…

A: Change in entropy of system : VfVi = Tf × PiTi × Pf = 408 × 1.50298 × 7.00 = 0.2934  Cv = Cp - R =…

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A: Entropy of a system is the measure of the randomness or dis-ordered ness of the system. The entropy…

Q: Recall that for a monoatornic ideal gas, CV = (3/2) *R . If an equal number of moles of any three…

A: For monoatomic ideal gas  CV = (3/2)R  Change in entropy is given as follows  ∆S = -R [n1lnx1 +…

Q: Consider a process in which an ideal gas changes from state 1 to state 2 in such a way that its…

A: No, this is not an isothermal process. Temperature of initial state ( state 1 ) and final state (…

Q: What is the difference in entropy between 1 mole of N2 at standard conditions and 1 mole of N2 at…

A: Given, Cp=52R and it is mentioned that the Nitrogen gas is taken at standard condition. Therefore,…

Q: The enthalpy of vaporization (deltaHvap) of water was experimentally determined to be 151.3 kJ for…

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Q: 2.0 mol of hydrogen gas and 3.0 mol of argon gas are mixed at the same pressure and temperature,…

A: To determine the change in entropy and change in molar Gibbs free energy at 298.15K when 2.0 mol of…