Question

Is the following reaction always, sometimes or never spontaneous: NaOH(s) → Na+(aq) + OH-(aq)

Answer 1

See

NaOH was in solid state

Both the solute and solvent turns to aqueous i.e liquid form .

So

• Randomness increases
• Gibbs free energy decreases
• ∆G is -ve

So

• spontaneous always