What will be the signs of `DeltaH` and `DeltaS` when NaOH is dissolved in water?

Options

A. `{:(DeltaH,DeltaS),(-,-):}`
B. `{:(DeltaH,DeltaS),(+,-):}`
C. `{:(DeltaH,DeltaS),(-,+):}`
D. `{:(DeltaH,DeltaS),(+,+):}`

Answer

C

Explanation

When `NaOH` is dissolved in water, heat is evolved and solid `NaOH` is converted to liquid state `(DeltaH=-ve, DeltaS=+ve)`.