Point defects of an alkaline bromide

An alkaline bromide MBr is considered at equilibrium with bromide vapor within a pressure range between 10 and 0.1 atm. and at 600°C. 

Calculate at the indicated temperature the equilibrium constants for reactions [17.R.5]to [17.R.11]. 

Give the expressions of the concentrations of the various defects in the considered range of pressure. Show that in this range bromide is clearly a Schottky solid with ionized vacancies. Plot the Kroger-Vink diagram for the four major defects within the considered pressme range. 

To calculate, for each reaction, the equilibrium constant at 600°C (i.e. at 873 K), we apply the vant s Hoff law  

If Avogadro number N is 6.02 x 10, to transform the eV/atom given into J/mole, we multiply the value of enthalpy given in Table 17.1 by 1.59 x 10 A/ or 

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