Sodium acetate crystallizes from a supersaturated solution (see Figure 12.4). What can you say about the sign of ∆G°? What would you expect for the sign of ∆S°? What about the sign of ∆H°? Is the crystallization exothermic or endothermic? Explain your answers.

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700 mL 200 mL 100 mL F150 150 100 100 50 50 50 Crystallization begins immediately when a small crystal of sodium acetate is added. Within seconds, crystal growth spreads from the original crystal throughout the solution. ig na aa can Crystal growth will rapidly continue until the entire solution contains solid sodium acetate. O Cengage Learning