Purchase Solution

Free energy change of a reaction

Not what you're looking for?

Ask Custom Question

Consider the combustion reaction for propane below.
CH3CH2CH3(g)+5O2(g)-------->3 C02(g)+4H20(g)

a) Determine the delta G standard state at 298 K from the following standard state values at T= 298
S(CH3CH2CH3)=269.9 J/K mol
S(C02)= 213.7 J/K mol
S(H20)=188.8 J/K mol
S(02)=205.1 J/ K mol
delta H(CH3CH2CH3)=-103.9 kJ/mol
delta H(C02)=-393.5 kJ/mol
delta H(H20)=-241.8 kJ/mol

b) Determine the delta G standard state at 1000K. assume delta H is independent of temperature.

Purchase this Solution

Solution Summary

The solution provides a detailed and step-by-step explanation that discusses the free energy change of a reaction.

Solution Preview

Use any good chemistry text reference. I'm using "Chemistry" 2nd ed. by Steven Zumdahl, page 749.

The free energy change is calculated using:
deltaG = deltaH - T*deltaS
Where T ...

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.

General Chemistry - Classification of Matter

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

Thermochemistry

The quiz helps in revising basic concepts about thermochemistry.

Functional groups in Organic Chemistry

You will be tested on the names of functional groups in Organic Chemistry. It is very important to know the functional groups to understand Organic reactions.