Answer:
Plate tectonics is a scientific theory describing the large-scale motion of seven large plates and the movements of a larger number of smaller plates of Earth's lithosphere, since tectonic processes began on Earth between 3.3 and 3.5 billion years ago.
Answer : The energy for vacancy formation in silver is, ![1.762\times 10^{-19}J](https://tex.z-dn.net/?f=1.762%5Ctimes%2010%5E%7B-19%7DJ)
Explanation :
Formula used :
![N_v=N\times e^{(\frac{-E}{K\times T})}](https://tex.z-dn.net/?f=N_v%3DN%5Ctimes%20e%5E%7B%28%5Cfrac%7B-E%7D%7BK%5Ctimes%20T%7D%29%7D)
or,
![N=\frac{N_A\times \rho}{M}](https://tex.z-dn.net/?f=N%3D%5Cfrac%7BN_A%5Ctimes%20%5Crho%7D%7BM%7D)
So,
![N_v=[\frac{N_A\times \rho}{M}]\times e^{(\frac{-E}{K\times T})}](https://tex.z-dn.net/?f=N_v%3D%5B%5Cfrac%7BN_A%5Ctimes%20%5Crho%7D%7BM%7D%5D%5Ctimes%20e%5E%7B%28%5Cfrac%7B-E%7D%7BK%5Ctimes%20T%7D%29%7D)
where,
= equilibrium number of vacancies = ![3.6\times 10^{23}m^{-3}=3.6\times 10^{20}L^{-1}](https://tex.z-dn.net/?f=3.6%5Ctimes%2010%5E%7B23%7Dm%5E%7B-3%7D%3D3.6%5Ctimes%2010%5E%7B20%7DL%5E%7B-1%7D)
E = energy = ?
M = atomic weight = 107.9 g/mole
= Avogadro's number = ![6.022\times 10^{23}mol^{-1}](https://tex.z-dn.net/?f=6.022%5Ctimes%2010%5E%7B23%7Dmol%5E%7B-1%7D)
= density = ![9.5g/cm^3=9.5g/ml=9500g/L](https://tex.z-dn.net/?f=9.5g%2Fcm%5E3%3D9.5g%2Fml%3D9500g%2FL)
T = temperature = ![800^oC=273+800=1073K](https://tex.z-dn.net/?f=800%5EoC%3D273%2B800%3D1073K)
K = Boltzmann constant = ![1.38\times 10^{-23}J/K](https://tex.z-dn.net/?f=1.38%5Ctimes%2010%5E%7B-23%7DJ%2FK)
Now put all the given values in the above formula, we get:
![3.6\times 10^{20}L^{-1}=[\frac{(6.022\times 10^{23}mol^{-1})\times 9500g/L}{107.9g/mol}]\times e^{[\frac{-E}{(1.38\times 10^{-23}J/K)\times 1073K}]}](https://tex.z-dn.net/?f=3.6%5Ctimes%2010%5E%7B20%7DL%5E%7B-1%7D%3D%5B%5Cfrac%7B%286.022%5Ctimes%2010%5E%7B23%7Dmol%5E%7B-1%7D%29%5Ctimes%209500g%2FL%7D%7B107.9g%2Fmol%7D%5D%5Ctimes%20e%5E%7B%5B%5Cfrac%7B-E%7D%7B%281.38%5Ctimes%2010%5E%7B-23%7DJ%2FK%29%5Ctimes%201073K%7D%5D%7D)
![E=1.762\times 10^{-19}J](https://tex.z-dn.net/?f=E%3D1.762%5Ctimes%2010%5E%7B-19%7DJ)
Therefore, the energy for vacancy formation in silver is, ![1.762\times 10^{-19}J](https://tex.z-dn.net/?f=1.762%5Ctimes%2010%5E%7B-19%7DJ)
The woods so far the texture is going to be A with the Henry
Convert 98.7 g Sb2S3 to mols.
Convert mols Sb2S3 to mols Sb4O6 using the coefficients in the balanced equation.
Convert mols Sb4O6 to grams Sb4O6. (This is the theoretical yield.)
Convert grams Sb4O6 to percent Sb4O6.
%Sb4O6 = [72.4/theoretical yield]*100
So basically your answer is 85.5%