1. Explain the diagram:

2. Explain what happens as as the tubes cool down to room temperature:

Tube #1 of theobroma oil has been melted and kept below 35 while

Tube #2 has been heated and melted at a temperature >50?

3. Explain why there is a difference when theobroma oil is heated at these different temperatures?

m.p.B m.p.A Liquid mixture of A+B Temperature (C) Crystals of pure A+ liquid mixture Crystals of pure B + liquid mixture E Eutectic temperature Solid A+B M B Eutectic composition Composition (mole fraction)