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Question

Enthalpy of solution of NaOH (solid ) in water is 41.6 kJ mol1 . When NaOH is dissolved in water, the temperature of water

A

Increase

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B

Decreases

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C

Does not change

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D

Fluctuates indefinitely

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Solution

The correct option is A

Increase


Since process is exothermic then heat is evolved due to this temperature of water increases.

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