Unformatted text preview: V and other properties of the mixture, some approximate (there are better) mixing rules are b mix = ½ (b 1 + b 2 ) = Σ x i b i a 12 = (a 11 a 22 ) ½ Based on these mixing rules, while binary pair from below is least likely to form an ideal mixture, and why? Species a (Pa m 6 mol-2 ) b (m 3 /mol 10 5 ) X 0.6 1.3 Y 0.01 10.9 Z 0.8 1.6 4. The excess Gibbs Energy per mole is measured for a binary mixture. The value is found to be independent of composition and also equal to a nonzero constant, a . The researchers are scratching their heads. They hypothesize that the measurement could be (i) real or (ii) a result of a systematic measurement error. Is hypothesis (i) valid? (Man…is this a great, practical, albeit simple question!)...
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- Spring '11
- Thermodynamics, excess Gibbs energy, systematic measurement error, Fe2+ iron solution