Problem: Calculate ΔG° for the reaction NH4NO3(s) → NH4+(aq) + NO3−(aq) to determine whether the reaction is spontaneous or not. Temperature: 298.15 K and ΔS°: 108.7 J/K•molCompound          ΔHf° (kJ/mol)NH4NO3(s)          −365.56NH4+(aq)             −132.51NO3−(aq)             −205.0A.  4.4 J , nonspontaneousB.  – 4.4 kJ, spontaneousC.  28.5 kJ spontaneousD.  −28.5 J nonspontaneousE.  5.6 kJ nonspontaneous 

FREE Expert Solution
95% (14 ratings)
Problem Details

Calculate ΔG° for the reaction NH4NO3(s) → NH4+(aq) + NO3(aq) to determine whether the reaction is spontaneous or not. Temperature: 298.15 K and ΔS°: 108.7 J/K•mol

Compound          ΔHf° (kJ/mol)

NH4NO3(s)          −365.56

NH4+(aq)             −132.51

NO3(aq)             −205.0

A.  4.4 J , nonspontaneous

B.  – 4.4 kJ, spontaneous

C.  28.5 kJ spontaneous

D.  −28.5 J nonspontaneous

E.  5.6 kJ nonspontaneous

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Gibbs Free Energy concept. You can view video lessons to learn Gibbs Free Energy. Or if you need more Gibbs Free Energy practice, you can also practice Gibbs Free Energy practice problems.

What is the difficulty of this problem?

Our tutors rated the difficulty ofCalculate ΔG° for the reaction NH4NO3(s) → NH4+(aq) + NO3−(a...as medium difficulty.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Parnis' class at Trent University.