4) Calculate the energy (J/mol) for vacancy formation in silver, given that the equilibrium number of...

4) Calculate the energy (J/mol) for vacancy formation in silver, given that the equilibrium number of vacancies at 800 degree C is 3.6 * 10^23 m^-3. Atomic weight of Ag is 107.9 g/mol, the density of Ag is 9.3 g/cm^3 and Avogadro N_a = 6.023 * 10^23 atoms/mol.

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queen_honey_blossom answered 2 years ago

. Given that the activation energy for vacancy formation in Copper is 0.90 eV/atom, calculate the...

. Given that the activation energy for vacancy formation in Copper is 0.90 eV/atom, calculate the temperature (in Kelvin) at which 1 of every 10,000 Copper lattice sites is vacant.

Using standard Gibbs energy of formation values given in the table, calculate the equilibrium constant K...

Using standard Gibbs energy of formation values given in the table, calculate the equilibrium constant K of the reaction Cl2(g)+2NO(g)⇌2NOCl(g) The standard Gibbs energy change of the reaction represents the drive the reaction has under standard conditions to move toward equilibrium from point A to point X in the diagram. Substance ΔfG∘ (kJ mol−1) Cl2(g) 0 NO(g) 86.71 NOCl(g) 66.30

The molar heat capacity of silver is 25.35 J/mol⋅∘C. How much energy would it take to...

The molar heat capacity of silver is 25.35 J/mol⋅∘C. How much energy would it take to raise the temperature of 9.10 g of silver by 10.5 ∘C? Use the following values:specific heat of water = 4.18 J/(g⋅∘C) specific heat of steel = 0.452 J/(g⋅∘C) Find ΔHrxn for the reaction: N2O(g)+NO2(g)→3NO(g) Use these reactions with known ΔH's: 2NO(g)+O2→2NO2(g)ΔH=−113.1kJ N2(g)+O2→2NO(g)ΔH=+182.6kJ 2N2O(g)→2N2(g)+O2(g)ΔH=−163.2kJ

1. The molar heat capacity of silver is 25.35 J/mol⋅∘C. How much energy would it take...

1. The molar heat capacity of silver is 25.35 J/mol⋅∘C. How much energy would it take to raise the temperature of 11.9 g of silver by 11.0 ∘C? 2.What is the specific heat of silver? 3.A piston has an external pressure of 8.00 atm. How much work has been done in joules if the cylinder goes from a volume of 0.170 liters to 0.540 liters? 4.Calculate the standard enthalpy change for the reaction 2A+B⇌2C+2D Use the following data: Substance ΔH∘f...

The energy of formtion of a vacancy in the copper crystal is about 1 eV. Calculate...

The energy of formtion of a vacancy in the copper crystal is about 1 eV. Calculate the concentration of vacancies at room temperature (300K) and just below the melting temperature, 1084oC. The atomic mass of Cu is Mat = 63.54g*mol-1 and the density at 293 K is 8.96cm-3. Neglect the change in the density which is small.

Given the values of So given below in J/mol K and the values of ΔHfo given...

Given the values of So given below in J/mol K and the values of ΔHfo given in kJ/mol, calculate the value of ΔGo in kJ for the combustion of 1 mole of propane to form carbon dioxide and gaseous water at 298 K. S (C3H8(g)) = 274 S (O2(g)) = 209 S (CO2(g)) = 216 S (H2O(g)) = 181 ΔHfo (C3H8(g)) = -105 ΔHfo (CO2(g)) = -394 ΔHfo (H2O(g)) = -225

the ionization energy for a 1s electron in a silver atom is 2.462 x 106 kJ/mol...

the ionization energy for a 1s electron in a silver atom is 2.462 x 106 kJ/mol Determine an approximate value for Zeff for the Ag 1s electron. Assume the Bohr model applies to the 1s electron. Zeff is the apparent nuclear charge experienced by the electrons How does Zeff from part a compare to Z for Ag? Rationalize the relative numbers.

1) For the formation of 1 mol of nitrosyl chloride at a given temperature, ΔH =...

1) For the formation of 1 mol of nitrosyl chloride at a given temperature, ΔH = –36kJ. NO(g) + 1/2 Cl2(g) → NOCl(g) The activation energy for this reaction is 67 kJ/mol. What is the activation energy for the reverse reaction? 2) Below is a proposed mechanism for the decomposition of H2O2. H2O2 + I– ® H2O + IO– slow H2O2 + IO– ® H2O + O2 + I– fast Which of the following statements is incorrect? a. I– is...

Calculate the lattice energy (kJ/mol) of the hypothetical ionic compound MX from the information given below....

Calculate the lattice energy (kJ/mol) of the hypothetical ionic compound MX from the information given below. IE1(M) = 499 kJ/mol M(s) => M(g) ΔHo = 70.6 kJ/mol ΔHof(MX) = -147.5 kJ/mol X2(g) => 2X(g) ΔH = 179 kJ EA (X) = -352 kJ/mol IE1 (X) = 271 kJ/mol Answer is -455 ± 2% Please show all work

The standard heat of formation of CaBr2 is -675 kJ/mol. The first ionization energy of Ca...

The standard heat of formation of CaBr2 is -675 kJ/mol. The first ionization energy of Ca is 590 kJ/mol and its second ionization energy is 1145 kJ/mol. The heat of sublimation of Ca[Ca(s)→Ca(g)] is 178 kJ/mol. The bond energy of Br2 is 193 kJ/mol, the heat of vaporization of Br2(l) is 31 kJ/mol, and the electron affinity of Br is -325 kJ/mol. Calculate the lattice energy of CaBr2.

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