13. Solving a chemistry problem

6. Based on the data (composition, temperature) of the precipitation of the first crystal, construct a state diagram for a conditional system of substances.
2) Determine the qualitative and quantitative composition of the eutectic mixture.
3) Draw schematically all types of cooling curves possible in the given system. Indicate which compositions in the diagram these curves correspond to.
4) Calculate the number of degrees of freedom for the system given by the figurative point coordinate.
5) "Arrows" show the processes of cooling the system until complete solidification. All processes occurring in this case are described in detail.

variant system of substances coordinates of a configurable point temperature of the system, С0 wt.% of F
6F


N T=1998 0C

wt% (F)=100% 2020 0 1830 74.9
2000 17 1860 75.8
1970 36.5 1910 84
1940 50 1940 88
1910 59 1960 92
1880 67.3 1998 100