- The vibrational contribution to the molar heat capacity of 2 diatomic molecules can be different, what is the rea- son? - Is the electronic contribution to the reaction constant in the reaction of 1 nitrogen atom with 1 oxygen atom zero? Briefly reason.
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Q: A;H°(CO2, g) = -393.5 kJ mol"; A;H°(H2O, 1) = -294.6 kJ mol" S°(CH;OH, I) = 126.8 J mol K'; s°(O2,…
A: Answer :- ∆fH° (CH3OH,(l)) =-257.5 (kJ.mol-1) The standard molar enthalpy of formation of CH3OH (l)…
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A: The given reaction is, N2(g) + 3H2(g) ---> 2 NH3(g)
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Q: Estimate the vibrational contribution to the molar entropy of the most common isotopomer of bromine,…
A: First the vibrational partition function is calculated.
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Q: b. The standard molar entropy of O2 is 205.14 J mol-1 K-1 and õ = 1580 cm-1 and the electronic…
A: GIVEN: The standard molar entropy of O2 is 205.14 J mol-¹ K-¹ and ≈ = 1580 cm-¹ and the electronic…
Q: Calculate the rotational partition function of SO2 at 298 K from its rotational constants 2.027 36…
A: The rotational partition function of SO2 at 298 K from its rotational constants is to be calculated…
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Q: Use the data below, for 298.15 K, to calculate the following quantities for the decomposition of…
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Q: caculate the vibrational contributio to the entropy of Cl2 at 500K given the wave number of the…
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Q: A linear molecule may rotate about two axes. If the molecule consists of N atoms, then there are 3N-…
A: a.
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Q: Two moles of a perfect gas expand isothermally and reversibly from 800 cm3 to 300 dm3 at 310 K. (a)…
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Q: Is the electronic contribution to the reaction constant in the reaction of 1 nitrogen atom with 1…
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Q: EX/ A sample of argon (molar mass 39.9 gmol) of mass 6.56 g occupies 18.5 dm' at 305 K. (a)…
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Q: WHAT IS THE EQUIUBaum CONSTAN7 EXPRESSION FOR THE FouoWINGs REACIION? SOs (9) + Hz O (e) = H2SO4 (g)
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Q: 12.10 Calculate the molar entropy of nitrogen gas at 298 K. Write the overall partition function as…
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Q: P13C.8 Consider a system of N molecules with energy levels ɛ, = jɛ and j= 0, 1, 2,...(a) Show that…
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Q: Calculate the translational partition function at (a) 300 K and (b) 600 K of a molecule of molar…
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Q: Starting from the molecular partition functions of each species, calculate ASrxn at 298.15 K and…
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Q: 5. The vibrational modes of a particular molecule are listed below. Calculate the vibrational…
A: Given : S. No. Degenracy(m) wave no (cm-1) v1 1 206 v2 1 305 v3 2 1083 v4 3 1367
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- Introduce the relation of enthalpy, internal energy and pressure-volume work with the chemical changes of a reaction.For the reaction C2H5OH(l) + 3 O2(g) → 2 CO2(g) + 3 H2O(g), ΔrU⦵ = −1373 kJ mol−1 at 298 K. Calculate ΔrH⦵.Two moles of a perfect gas expand isothermally and reversibly from 800 cm3 to 300 dm3 at 310 K. (a) Calculate DU, DS, w, and q for this system, (b) calculate DU, DS, w per mole, and q per mole, (c) if the expansion is carried out irreversibly by allowing the gas to expand into the evacuated container, what are the values of DUm, DSm, w per mole and q per mole?
- Use the equipartition principle to estimate the values of γ = Cp/CV for gaseous ammonia and methane. Do this calculation with and without the vibrational contribution to the energy. Which is closer to the experimental value at 25 °C?caculate the vibrational contributio to the entropy of Cl2 at 500K given the wave number of the vibration is 560/cmCalculate the standard molar entropy of N2(g) at 298 K from its rotational constant B =1.9987cm−1 and its vibrational wavenumber =2358cm−1. The thermochemical value is 192.1 J K−1 mol−1. What does this suggest about the solid at T = 0? PLEASE ANSWER ALL OF THE QUESTION, NOT THE FIRST PART!
- What do you mean by the term equilibrium partition coefficient?At what temperature is the standard molar entropy of helium equal to that of xenon at 298 K?Use the molar constant volume heat capacities for gases given in Topic 4C (as multiples for R) to estimate the change in reaction enthalpy of N2 (g) + 3 H2 (g) ---> 2 NH3 (g) when the temperture is increased from 300. K to 500. K. Ignore the vibrational contributions to heat capacity. Is the reaction more or less exothermic at the higher temperature? Atoms Linear Molecules Nonlinear Molecules Cv,m 3/2 R 5/2 R 3 R Cp,m 5/2 R 7/2 R 4 R
- Consider a system of distinguishable particles having only two non-degenerate levels separated by an energy that is equal to the value of kT at 10 K. Calculate (a) the ratio of populations in two states at (1) 1.0 K, (2) 10 K, (3) 100 K, (b) the molecular partition function at 10 K, (c) the molar energy at 10 K, (d) the molar heat capacity at 10 K, € the molar entropy at 10 K.Calculate the molar internal energy of carbon dioxide at 25 °C, taking into account its translational and rotational degrees of freedom.Calculate the vibrational, rotational, and translational contributions to the constant volume heat capacity (Cv) for 14N2 at 298 K. Assume this represents the high temperature limit for rotational energy and low temperature limit for vibrational energy. Given that Cv=20.81 J/K·mol for N2, state which type or types of energy contribute most to Cv for N2 and explain why those types of energy contribute most.