Problem: Solid ammonium nitrate is very soluble in water. When it dissolves, the solution becomes very cold. Based on this information alone, what are the most likely signs of ΔH ̊, ΔS ̊ and ΔG ̊? a) +, +, ‐ b) +, +, + c) +, ‐, ‐ d) ‐, ‐, ‐ e) ‐, +, ‐

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Solid ammonium nitrate is very soluble in water. When it dissolves, the solution becomes very cold. Based on this information alone, what are the most likely signs of ΔH ̊, ΔS ̊ and ΔG ̊?

a) +, +, ‐

b) +, +, +

c) +, ‐, ‐

d) ‐, ‐, ‐

e) ‐, +, ‐

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Based on our data, we think this problem is relevant for Professor Albizati's class at UCSD.