Refer to the information in Exercise 6.15(b) and sketch the cooling curves for liquid mixtures in which

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Refer to the information in Exercise 6.15(b) and sketch the cooling curves for liquid mixtures in which x(B2H6) is

(a) 0.10,

(b) 0.30,

(c) 0.50,

(d) 0.80, and

(e) 0.95.


Data in Exercise 6.15(b) 

Describe the phase changes that take place when a liquid mixture of 4.0 mol B2H6 (melting point 131 K) and 1.0 mol CH3OCH3 (melting point 135 K) is cooled from 140 K to 90 K. These substances form a compound (CH3)2OB2H6 that melts congruently at 133 K. The system exhibits one eutectic at x(B2H6) = 0.25 and 123 K and another at x(B2H6) = 0.90 and 104 K.

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Physical Chemistry

ISBN: 9780716787594

8th Edition

Authors: Peter Atkins, Julio De Paula

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