Based on reference table i, which change occurs when pellets of solid naoh are added to water and stirred?

If NaOH pellets are added to water and stirred, the solution temperature is increased. This is because the reaction of NaOH and water is exothermic, therefore, releasing heat. The delta H is a positive number. If the reaction is endothermic which absorbs heat, delta H is a negative number. 

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