Calculate
Are the two values equal?
Interpretation:
The value of
Concept introduction:
The standard Gibbs-energy gives the non-expansion work achieved from the system at a constant temperature and pressure for the reaction. The standard Gibbs-energy for the reaction is represented as
Answer to Problem 4.16E
The value of
Explanation of Solution
The combustion reaction of benzene is shown below.
The value of
Where,
•
•
•
•
The value of change in the Gibbs free energy for the formation of
Substitute the value of change in the Gibbs free energy for the formation of
The value of
The value of
The value of
The value of
The value of
The value of
Substitute the value of
The value of
Substitute the value of
Substitute the value of
The value of
The value of
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Chapter 4 Solutions
Physical Chemistry
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- Yeast can produce ethanol by the fermentation of glucose (C6H12O6), which is the basis for the production of most alcoholic beverages. C6H12O6(aq) 2 C2H5OH() + 2 CO2(g) Calculate rH, rS, and rG for the reaction at 25 C. Is the reaction product- or reactant-favored at equilibrium? In addition to the thermodynamic values in Appendix L, you will need the following data for C6H12O6(aq): fH = 1260.0 kl/mol; S = 289 J/K mol; and fG = 918.8 kl/mol.arrow_forwardA pot of cold water is heated on a stove, and when the water boils, a fresh egg is placed in the water to cook. Describe the events that are occurring in terms of the zeroth law of thermodynamics.arrow_forwardWhat is meant by the standard free-energy change G for a reaction? What is meant by the standard free energy of formation Gf of a substance?arrow_forward
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