2. The density of Fe-Cu melts at a temperature of 1823 K depends on the composition as follows
ХCu 0.0 0.2 0.4 0.6 0.8 1.0
р, g/cm3 7.05 7.12 7.22 7.32 7.44 7.57
Plot graphs of the dependence of partial-molar volumes of Fe and Cu on the composition of the solution.

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