The useful work obtained from a chemical reaction has to be given in an ideal situation and there is no entropy production. Concept introduction: Free energy: Free energy is measured by subtracting the product of temperature and entropy from the enthalpy of a system. G = H - TS where, G - free energy; H - enthalpy S - entropy and T -temperature . Relationship between ΔG o , ΔH o and ΔS o is given by ΔG o = ΔH o - TΔS o where, ΔG o - standard free energy change; ΔH o - standard enthalpy change ΔS o - standard entropy change and T - temperature Entropy: Entropy is a measure of randomness (disorder). If the randomness of a system is increases then its entropy will increase.
The useful work obtained from a chemical reaction has to be given in an ideal situation and there is no entropy production. Concept introduction: Free energy: Free energy is measured by subtracting the product of temperature and entropy from the enthalpy of a system. G = H - TS where, G - free energy; H - enthalpy S - entropy and T -temperature . Relationship between ΔG o , ΔH o and ΔS o is given by ΔG o = ΔH o - TΔS o where, ΔG o - standard free energy change; ΔH o - standard enthalpy change ΔS o - standard entropy change and T - temperature Entropy: Entropy is a measure of randomness (disorder). If the randomness of a system is increases then its entropy will increase.
Solution Summary: The author explains that the useful work obtained from a chemical reaction has to be given in an ideal situation and there is no entropy production.
Definition Definition Transformation of a chemical species into another chemical species. A chemical reaction consists of breaking existing bonds and forming new ones by changing the position of electrons. These reactions are best explained using a chemical equation.
Chapter 18, Problem 18.10QP
Interpretation Introduction
Interpretation:
The useful work obtained from a chemical reaction has to be given in an ideal situation and there is no entropy production.
Concept introduction:
Free energy:
Free energy is measured by subtracting the product of temperature and entropy from the enthalpy of a system.
G=H-TSwhere,G-freeenergy;H-enthalpyS-entropy and T-temperature.
Relationship between ΔGo,ΔHoandΔSo is given by
ΔGo=ΔHo-TΔSowhere,ΔGo-standardfreeenergychange;ΔHo-standardenthalpychangeΔSo-standardentropychange and T-temperature
Entropy:
Entropy is a measure of randomness (disorder). If the randomness of a system is increases then its entropy will increase.
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