The solubility of (s) in water at 298 K is about 6 moles per litre. Suppose you add 1 mole of (s) to a litre of water. For the reaction: (s) + - (aq)

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Question

The solubility of $NaCl$(s) in water at 298 K is about 6 moles per litre. Suppose you add 1 mole of $NaCl$(s) to a litre of water. For the reaction: $NaCl$(s) + $H_2O$ -> $NaCl$(aq)

Prashant Kotian · Accepted Answer

Correct answer: B. Since 1 mole is less than solubility limit (6 moles/L), dissolution is spontaneous, so Δ G < 0. Dissolution of salt increases disorder, so Δ S > 0.

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