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The Standard Free Energy Change Associated with the Dissolution of Ammonium

Question 32

Multiple Choice

The standard free energy change associated with the dissolution of ammonium nitrate in water is -6.73 kJ at 298 K. NH4NO3(s) ? NH4NO3(aq)
What is the equilibrium constant for the reaction? (R = 8.31 × 10?3 kJ/K)


A) 1.9 × 10-3
B) 6.6 × 10-2
C) 1.0
D) 15
E) 5.2 × 102

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