Purchase Solution

Thermodynamics : Heats of Formation

Not what you're looking for?

Ask Custom Question

For the reaction CH4 (g) + N2 (g) + 164 kJ 6 HCN(g) + NH3 (g) at 25degrees C and 1 atm of pressure
ÄGo = 159 kJ. Calculate ÄSo at 25degrees C.

ÄHfo for CH4 (g) = -74.77 kJ/mol and ÄHfo for
NH3 (g) = -46.09 kJ/mol. What is ÄHfo for HCN(g) ?

Purchase this Solution

Solution Summary

This solution explains how to calculate entropy based on Gibbs free energy and enthalpy of formation. This solution also explains how to calculate the heat of formation of a compound using the heat of reaction.

Solution Preview

For the reaction CH4 (g) + N2 (g) + 164 kJ 6 HCN(g) + NH3 (g) at 25degrees C and 1 atm of pressure
ÄGo = 159 kJ. Calculate ÄSo at 25degrees C.

Looking at ...

Purchase this Solution


Free BrainMass Quizzes
Organic Chemistry Naming: Alkanes

This is a quiz which is designed to assist students with learning the nomenclature used to identify organic compounds. This quiz focuses on the organic compounds called Alkanes.

Match Elements with their Symbols

Elements are provided: choose the matching one- or two-letter symbol for each element.

Thermochemistry

The quiz helps in revising basic concepts about thermochemistry.

General Chemistry - Classification of Matter

This test will assess your knowledge on the classification of matter which includes elements, compounds and mixtures.