Hello, dear colleagues. I nesse some help in 2 questions.
1. At 800 ºC, one out of 10^10 atoms and at 900 ºC one between 10^9 atoms have enough energy to move within a solid. (a) What is the activation energy in cal/mol? (b) in wich temperature will there be one out of 10^8 atoms with enough energy to move?
2. What is the MgO / FeO ratio, by weight, of the solution shown in the figure? If all ions of Fe of the figure were replaced by Ni ions, what would be the percentage and weight of MgO?
I would really appreciate if you could help me.