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In the preparation of an NaOH solution, which is an exothermic process, how can the solubility...

In the preparation of an NaOH solution, which is an exothermic process, how can the solubility of NaOH in water be increased?

A. cool the reaction container

B. add more solute

C. add more solvent

D. add more heat

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Answer #1

In exothermic proesses heat will be evolved vigorously when solute dissolves. After reaching the boiling temperature of the solution no more solute will dissolve until the temperature dissipates. So to increase the solubility when scenario like this we need to cool the container for the faster dissipation of heat. Therefore,

A. cool the reaction container is the correct answer

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