2.0 mol of hydrogen gas and 3.0 mol of argon gas are mixed at the same pressure and temperature, a.)what is the change in entropy? b.)If this process was carried out isothermally at 298.15 K, what is the change in molar Gibbs free energ

Q: What is the molar change in entropy (in J/mol-K) associated with the melting of ice at 1 atm if the…

A: Entropy is the measurement of randomness .It can be calculated as below for different processs

Q: 12 The molar heat of combustion, A H;, of sucrose is -5643.4 kJ mol 1, If 0.250 moles of sucrose is…

A: Given :  12.  ∆Hc° of sucrose = -5643.4 KJ mol-1  Moles of sucrose = 0.250 moles  Temperature = 16°C…

Q: Calculate the entropy of vaporization for 3 moles of water at 25 °C given that Cp, m (H2O(l)) =…

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Q: 1. a) Why is chemical potential analogous to temperature and pressure? b) Under what circumstance…

A: a). The energy that can be released or absorbed due to the change of number of particles of the…

Q: he sum of the entropy changes of the system and the surroundings (∆SSYS + ∆SSURR) are:

A:

Q: Given the following values for the changes in enthalpy (∆H) and entropy (∆S), which of the following…

A: According to the second law of thermodynamics, a process will be feasible if change of entropy (∆S)…

Q: Whenever a gas expands when we exhale, when a flask is opened, and so on the gas undergoes an…

A:

Q: AS ΔΗ- ΔΗ: ↑

A: Entropy is the term defined as irregularities of the atoms if the irregularities increase then the…

Q: Half a mole of an ideal gas expands isothermally and reversibly at 298.15 K from a volume of 10 L to…

A: Here we have to determine ∆Ssys , ∆S sur, ∆S univ and work done in the following given thermodynamic…

Q: A system is at an initial entropy of 375 J/K and undergoes a system change that results in a final…

A: Given that, Initial entropy = 375 J/K Final entropy = 840 J/K

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: Calculate the standard state entropy of formation for H2O gas and of H2O liquid. Why is the entropy…

A: Solution: Standard entropy values at 25 deg. C for reference

Q: Calculate the change in entropy when one mole of metallic aluminum is heated at one bar pressure…

A: Enthalpy of fusion for 1 mole of Al is 10699.45 J/molInitial temperature = 25 degC = 298.15K KFinal…

Q: What is the total change in entropy of the universe (system + surroundings) if 4.4 g of CO(g) reacts…

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Q: Calculate the standard molar entropy of vaporization of water at 32.0 °C32.0 °C , given that its…

A:

Q: Predict whether the entropy or disorderliness of the system where the following changes occur is…

A: Answer: Entropy of the system is measure of its disorderliness and as we know gases are more…

Q: Two flasks are joined, seperated by a stopcock. The volume of Flask A is 350.0 mL, and the volume of…

A: The change in entropy at same temperature is calculated by the formula,         ∆S=nRlnV2V1 Where,…

Q: onsider the reaction 2NaOH(aq) + H2(g)2Na(s) + 2H2O(l) for which H° = 368.6 kJ and S° = 15.30 J/K…

A: Solution- 2NaOH (aq)+ H2O(g)  →2Na(s)+H2O(l)∆Ho= 368.6 kJ ∆S° = 15.30 J/K at 298.15 K.(1). NaOH…

Q: . Given the following processes, what would be the entropy change for the gases involved? a.…

A: Given that -  a. Ethanal, 5 mols, is heated from 180 (453 K) to 2200°C (2473 K)  b. 10 mols of…

Q: The heat capacity, Cp, of liquid carbon disulfide is a relatively constant 78 J/(mol K). However,…

A: Solution In this question we use Third Law of Thermodynamics it tells us that as T → 0 K, S → 0.…

Q: A process increases the entropy of the system by 493 J/mol K and absorbs 87 kJ/mol of heat from the…

A: Answer is given as follows

Q: When is Gibbs free energy negative? If is it spontaneous or non-spotaneous?

A: Gibbs free energy change is a thermodynamic parameter, which is associated with the enthalpy and…

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: If there are two chemical reactions: #1 with change in Gibbs free energy of -25 kJ/mol; and #2 with…

A: #2 since it has a higher change in Gibbs free energy.

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

A:

Q: Consider the reaction: NO(9) _H2(g) → N2(g) +. H2O) for which AS'= -551.7 J/K at 25°C. Using the…

A:

Q: The molar heat of combustion, A H2, of methane is -890.7 kJ mol-1. If 0.0500 moles of methane is…

A:

Q: Consider a sample of perfect gas (0.10 mol) held inside a cylinder by a piston such that the volume…

A: Given : Moles of gas = 0.10 mol. Initial volume of gas = 1.25 dm3 = 1.25 L…

Q: Combustion of glucose (C H,0) is the main source of energy for animal cells: CH1206(s) + 60,(g) 6…

A:

Q: Indicate whether each statement is true or false. The entropy change for an isothermal process…

A: Entropy : is a thermodynamic property. Entropy determines tendency of process. Tendency means…

Q: A heat engine operates between a high- temperature reservoir at 610 K and a low- temperature…

A: Entropy S can be calculated by the following formula. S=QTS=entropyQ=heat involvedT=temperature…

Q: One mol of an ideal gas at 300 K expands reversibly from 3 x 102 m³ to 5 x 102 m3, Calculate the…

A: Entropy change at contact temperature with change of volume relation given below

Q: drug used to treat hypertension undergoes a decomposition reaction to give an insoluble product.…

A: Given :  ∆H = 54.1 kJ mol-1  Since , 1 kJ = 1000 J  => ∆H = 54.1 x 1000 = 54100 J mol-1 ∆S =…

Q: 4. Which of the following processes will have the largest positive value for the entropy change in…

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Q: What is the chemical significance of a positive Gibbs free energy change and what is the chemical…

A: The amount of energy available for doing some useful work is termed as free energy or Gibbs free…

Q: The enthalpy of vaporization of methanol is 35.27 kJ mol1 at its normal boiling point of 64.1 °C.…

A: Enthalpy of vaporisation  is  35.27 KJ mol-1 = 35270 Jmol-1  Temperature = 64.1°C = 64.1+273 =337.1K…

Q: The enthalpy for a certain process is 146.4 kJ/mol and the entropy for the process is 463.6 J/K.  At…

A:

Q: A typical resting person heats the surroundings at a rate of about 100 W. Estimate the entropy you…

A:

Q: Calculate the change of the entropy of the system in J/K for the following phase transition:…

A: Given data -  Mass of methanol = 64.1 g  Molar mass of methanol = 32.04 gmol-1   Enthalpy of…

Q: If the normal boiling point of a liquid is 67 °C, and the standard molar entropy change for the…

A: Standard molar enthalpy change can be expressed in terms of standard molar entropy change and…

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: Calculate the change in Gibbs free energy for each of the following sets of ΔH∘rxn , ΔS∘rxn , and T.…

A: ΔG∘ = ΔH∘ - TΔS∘

Q: Considering perfect gases, which state function is zero when two substances are mixed?…

A:

Q: Whenever a gas expands isothermally, such as when you exhale or when a flask is opened, the gas…

A:

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: Half a mole of a perfect gas expands isothermally and at 298.15 K from a volume of 10 L to a volume…

A: Since you have posted a question with multiple subparts, we will solve the first three subparts for…