Methane (melting point 91 K) and tetrafluoromethane (melting point 89 K) do not form solid solutions with

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Methane (melting point 91 K) and tetrafluoromethane (melting point 89 K) do not form solid solutions with each other, and as liquids they are only partially miscible. The upper critical temperature of the liquid mixture is 94 K at x(CF4) = 0.43 and the eutectic temperature is 84 K at x(CF4) = 0.88. At 86 K, the phase in equilibrium with the tetrafluoromethane-rich solution changes from solid methane to a methane-rich liquid. At that temperature, the two liquid solutions that are in mutual equilibrium have the compositions x(CF4) = 0.10 and x(CF4) = 0.80. Sketch the phase diagram.

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Physical Chemistry

ISBN: 9780716787594

8th Edition

Authors: Peter Atkins, Julio De Paula

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