5.Derive Entropy of mixing for an ideal solution derive ASmix= -k(N,LnX,+N„LnXs) using i. Classical thermodynamics ii. Statistical Thermodynamics
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A: The calculation of entropy after mixing of ideal gases isothermally can be calculated as:
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Q: Calculate (a) the (molar) Gibbs energy of mixing, (b) the(molar) entropy of mixing when the two…
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A: Formula used :- ∆G° = ∆H° - T∆S°
Q: Iron(III) oxide can be reduced by carbon monoxide. Fe203(s) + 3C0(g) = 2Fe(s) + 3CO2(g) Use the…
A: ∆G°rxn = summation(n*∆G°product) - summation(n*∆G°reactant) Where , ∆G° is standard Gibbs Energy.
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Q: Slove for the Gibbs energy of formation for a generic compound AB2 in kJ/mol given the following…
A: Given, The balanced reaction can be written as : A (l) + B2 (g) → AB2 (s)
Q: At 0 °C liquid water and ice are in equilibrium. What is the effect on the difference in molar Gibbs…
A: Density of ice is 0.9150 g/cm3 Density of water is 0.9999 g/cm3 Gm(pf) and Gm(pi) are related as:
Q: Consider a solution consisting of 1.75 mol water and 0.97 mol ethanol. What is the Gibbs energy of…
A: Here we are required to find the Gibbs energy of mixing when water and ethanol are mixed
Q: e) Differentiate between state and nonstate thermodynamic systems using suitable examples.
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Q: J/K-mol-rxn The | in entropy reflects the greater disorder of the solution state.
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Q: 1.00 g of H2, 2.00 g of N2 and 2.00 g of CO2 at 25 °C and 1 atm were mixed isothermally, assuming…
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Q: The standard molar entropy of N2 gas at 25 ⁰C can be determined experimentally from S(0) through…
A: Solution - According to the question - Given values are - For N2(s) ----> N2(l) ; ∆sm =…
Q: Give examples of chemical systems that are (a) open, (b) closed, (c) isolated.
A: Open system: An open system can exchange energy and matter with environment. Example: Cup of water (…
Q: is often interpreted as a measure of the disorder or randomness of a system. It is a representation…
A: Fill in the blank
Q: strategy for calculating the entropy of vaporisation of propanone at 298 K
A: Entropy, ∆S = ∆Hvap / T where, ∆Hvap = Change in enthalpy due to vaporization, T = Temperature at…
Q: 2.1.1 Calculate ∆rGo , using only Gibbs energy values. 2.1.2 Calculate the equilibrium constant, K,…
A: Given that - 1/4 S8 (s) + 3O2(g) → 2SO3 (g) (2.1.1) - Then, Gibbs free energy is - ∆G°rxn =…
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Q: Derive a formula for the molar Gibbs free energy change
A: In this question we have to derive a formula for the molar Gibbs free energy change of a closed…
Q: Perfect gas AS = nR ln(V/V,) Entropy of isothermal expansion
A: To prove this equation , we would use law of thermodynamics and perfect gas law.
Q: Consider the synthesis of sulphur trioxide from its elements at 25oC: 1/4 S8 (s) + 3O2(g) → 2SO3 (g)…
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A: Given chemical reaction is 1/4 S8 (s) + 3O2(g) → 2SO3 (g) Thermodynamic Data given is : Species…
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A: The randomness of of a system is known as entropy.
Q: Suppose that 2.0 mol H2 at 2.0 atm and 25 °C and 4.0mol N2 at 3.0 atm and 25 °C are mixed by…
A: Suppose that 2.0 mol H2 at 2.0 atm and 25 °C and 4.0mol N2 at 3.0 atm and 25 °C are mixed by…
Q: What does the superscript ° indicate when associated with a thermodynamicquantity, as in ΔH°, ΔS°,…
A: The superscipt ˚ in thermodynamics indicates that the given thermodynamic quantity is in standard…
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A: dA is usually denoted as the Helmholtz free energy in thermodynamics which is less than or equal to…
Q: 4.00 L of Ar and 2.50 L of He, each at 298 Kelvin and 1.50 atm, were mixed isothermally and…
A: Given: The volume of Ar= 4.00 L The volume of He= 2.50 L Temperature= 298 K Pressure= 1.50 atm Final…
Q: 2. The molar entropy of argon (Ar) is given by Sm = 36.4 + 20.8 In T (in SI units). Calculate the…
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Q: What does the superscript ° indicate when associated with a thermodynamicquantity, as in ∆H °, ∆S°,…
A: The superscipt ˚ in thermodynamics indicates that the given thermodynamic quantity is in standard…
Q: The change in the Gibbs energy of a certain constant-pressure process is found to fit the expression…
A: Dear Student, According to Bartleby guidelines we have to answer the first question only (in…
Q: You have a REGULAR solution of A and B. You determined that for a solution with xA= 0.32, the molar…
A: Welcome to bartleby ! We have to calculate enthalpy of mixing
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A: given The reaction: C6H12O6(B-glucose) + 6O2(g) →6 CO2 (g) + 6 H2O (g) For the standard gibbs free…
Q: Suppose now that argon is added to the mixture in the previous exercise to bring the composition…
A: Gibbs free enrgy of mixture is given by, mix=-RT(XAlnXA + XBlnXB + XCln XC) = -8.314298 (0.78 (ln…
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- The difference in a chemical potential of a particular substance between two regions of a system is -9.5 kJ/mol. By how much does the Gibbs energy change when 0.30 mmol of that substance is transferred from one region to the other?Calculate the entropy of mixing (in J/K) when 1.29 mol of hexane is mixed with 2.49 mol of heptane at 25°C. Assume solutions are ideal.What proportions of hexane and heptane should be mixed (i) by mole fraction, (ii) by mass in order to achieve the greatest entropy of mixing?
- Suppose now that argon is added to the mixture in the previous exercise to bring the composition closer to real air, with mole fractions 0.780. 0.210, and 0.0096, respectively. (a) What is the additional change in molar Gibbs energy and entropy at 298 K? (b) Is the mixing spontaneous?Suppose a certain small bird has a mass of 30 g. What is the minimum mass of glucose that it must consume to fly to a branch 10 m above the ground? The change in Gibbs energy that accompanies the oxidation of 1.0 mol C6H12O6(s) to carbon dioxide and water vapour at 25 °C is -2828 kJ.Calculate (a) the (molar) Gibbs energy of mixing, (b) the (molar) entropy of mixing when the two major components of air (nitrogen and oxygen) are mixed to form air at 298 K. The mole fractions of N2 and O2 are 0.78 and 0.22, respectively. (c) Is the mixing spontaneous?
- Calculate (a) the (molar) Gibbs energy of mixing, (b) the(molar) entropy of mixing when the two major componentsof air (nitrogen and oxygen) are mixed to form air at 298 K.The mole fractions of N2 and 0 2 are 0.78 and 0.22. respectively. (c) Is the mixing spontaneous?Give an example to show the difference between the three types of specification of a system, the macrostate, the distribution, and the microstate?The enthalpy of vaporization (deltaHvap) of water was experimentally determined to be 151.3 kJ for 3.72 mols of water at 100 degrees Celsius? Calculate the molar entropy of vaporaization (deltaSvap,m) of water.
- At 0 °C liquid water and ice are in equilibrium. What is the effect on the difference in molar Gibbs energy when the pressure is increased from 1.0 bar to 100 bar? The mass densities of the two phases at 0 °c are ρ(ice) = 0.9150 g cm-3 and ρ(liquid) = 0.9999 g cm-3.You have a REGULAR solution of A and B. You determined that for a solution with xA= 0.32, the molar Gibbs of mixing is -1.23 kJ/mol at 298 K. Find the molar enthalpy of mixing. Is mixing endergonic or exergonic?What does the superscript ° indicate when associated with a thermodynamicquantity, as in ΔH°, ΔS°, or ΔG°?