A Phase Diagram of Temperature Versus Composition for a Mixture

question 82

Multiple Choice

A phase diagram of temperature versus composition for a mixture of the two volatile liquids octane (bp = and decane (bp = 126°C) is shown.
-Assume that you start with a mixture containing 0.80 mol of decane and 0.20 mol of octane,what region of the diagram corresponds to vapor?

• A)region a
• B)region b
• C)region c
• D)regions a and c

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