In the general phase diagram of Ferric chloride – water system, what causes reduction in water content in ferric chloride at each step?

In the general phase diagram of Ferric chloride – water system, what causes reduction in water content in ferric chloride at each step? Correct Answer Reduction in moisture content

Since for each transition from one phase to another for a component, the moisture content decreases due to increase in temperature. Hence the water concentration in ferric chloride decreases as the temperature increases.

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