Problem: Calculate ΔG° at 298 K for the following reactions.Part ANH3(g) + HBr(g) → NH4Br(s)Part B2 KClO3(s) → 2 KCl(s) + 3 O2(g)Part CCH4(g) + 3 Cl2(g → CHCl3(g) + 3 HCl(g)ΔG°f for CHCl3(g) is - 70.4 kJ/mol

FREE Expert Solution

We’re being asked to calculate ΔG° at 298 K for the given reactions:

We can use the following equation to solve for ΔG˚rxn:

ΔG°rxn=ΔG°f, prod-ΔG°f, react

The values for ΔG˚f can be looked up in textbooks or online:

Note that we need to multiply each ΔG˚f by the stoichiometric coefficient since ΔG˚f is in kJ/mol. 

100% (476 ratings)
View Complete Written Solution
Problem Details

Calculate ΔG° at 298 K for the following reactions.

Part A

NH3(g) + HBr(g) → NH4Br(s)

Part B

2 KClO3(s) → 2 KCl(s) + 3 O2(g)

Part C

CH4(g) + 3 Cl2(g → CHCl3(g) + 3 HCl(g)

ΔG°f for CHCl3(g) is - 70.4 kJ/mol

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.