A Phase Diagram of Temperature Versus Composition for a Mixture

question 109

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 is the liquid composition at the boiling point?

• A)100% decane
• B)composition at point b
• C)composition at point c
• D)composition at point e

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