Question: The osmotic coefficient' ф defined as ф = - (xA/xB) In aA By writing r =xSlxA, and using the Gibbs-Duhem equation, show that we can

The osmotic coefficient' ф defined as ф = - (xA/xB) In aA By writing r =xSlxA, and using the Gibbs-Duhem equation, show that we can calculate the activity of B from the activities of A over a composition range by using the formula

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