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48. Solution to Chemistry Problem

48. Solution to Chemistry Problem

Seller: Derkach

Price: 1.19 USD

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Product description

  • Using the data from Table 1, construct a melting diagram for the beryllium-silicon system.

Table 1

Be,

% by weight 0 20 40 61 80 100

Tn, С 1282 1205 1151 1100 1215 1402

Tk, С 1282 1100 1100 1100 1100 1402

Where Tn is the temperature at which crystallization begins; Tk is the temperature at which crystallization ends.

Using the diagram for the 75% by weight Si alloy, determine:

  • Temperatures at which crystallization begins and ends;
  • Composition of the first crystal and the last drop of liquid;
  • Mass of silicon in the solid and liquid states upon cooling 0.8 kg of the alloy to a temperature of 1150 С.

On the diagram, mark all areas and lines, give the diagram a full title. Mark with dots the melt containing 15% by weight of silicon, which is in equilibrium with solid beryllium. Determine the number of degrees of freedom at a given point.

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