APFIVE Thermodynamics of Dissolution
The dissolution of NH₄NO₃ in water is endothermic yet spontaneous at room temperature. If the concentration of NH₄NO₃ is increased substantially, which thermodynamic change would most likely occur?
A
ΔG° becomes less negative due to decreased entropy gain
B
ΔG° becomes more negative due to increased enthalpy
C
TΔS° increases proportionally with concentration
D
ΔH° becomes negative as more solute-solvent bonds form
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