Thermodynamics of Dissolution
The dissolution of ammonium nitrate, NH₄NO₃, in water is an endothermic process that occurs spontaneously at room temperature. Which of the following best describes the thermodynamic change if the concentration of the resulting solution is substantially increased?
A
ΔG° becomes less negative due to decreased entropy gain
B
ΔG° becomes more negative due to increased enthalpy
C
ΔH° becomes negative as more solute-solvent bonds form
D
TΔS° increases proportionally with concentration
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