Question

Consider a binary mixture of components A and B at temperature $T$ and pressure $P$. Let $\vec{V}_A$ and $\vec{V}_B$ be the partial molar volumes of A and B, respectively. At a certain mole fraction of A, $X_A$:
$\left( \frac{\partial \vec{V}_A}{\partial X_A} \right)_{T,P} = 22 \text{ cm}^3 \text{ mol}^{-1} \quad \text{and} \quad \left( \frac{\partial \vec{V}_B}{\partial X_A} \right)_{T,P} = -18 \text{ cm}^3 \text{ mol}^{-1}$
The value of $X_A$, rounded off to 2 decimal places, is ____.

Answer 1

The correct Answers is :0.44 or 0.46 Approx