For a certain salt, ΔH° = +31 kJ mol⁻¹ and ΔS° = +95 J mol⁻¹ K⁻¹

CHEMISTRY · Single correct · AP · Chemistry · Thermodynamics and Electrochemistry · Thermodynamics and Electrochemistry

Problem

For a certain salt, ΔH° = +31 kJ mol⁻¹ and ΔS° = +95 J mol⁻¹ K⁻¹, both assumed temperature-independent. At approximately what temperature will the dissolution of this salt become spontaneous under standard conditions? (a) 790 K790\ \text{K} (b) 330 K330\ \text{K} (c) 260 K260\ \text{K} (d) 480 K480\ \text{K}

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