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Entropy changes in chemical reactions

When a chemical reaction is proceeding, it is, by definition, not at equilibrium and thus not reversible. Thus, entropy changes in chemical reactions cannot be obtained from heat effects in calorimetric experiments. Entropy changes can be obtained by studying chemical equilibrium (Chapter 7) or by opposing the tendency of the reaction to proceed with an applied electric potential (Chapter 10). [Pg.97]

Tabulated standard molar entropies are used to calculate entropy changes in chemical reactions at 25°C and 1 atm, just as standard enthalpies of formation are combined to obtain enthalpies of reaction according to Hess s law (see Section 12.3). [Pg.552]

Entropy changes in chemical reactions also can be understood on a molecular basis. Consider, for example, the process... [Pg.200]

ENTROPY CHANGES IN CHEMICAL REACTIONS Using tabulated standard molar entropies, we can calculate the standard entropy changes for systems undergoing reaction. [Pg.784]

See other pages where Entropy changes in chemical reactions is mentioned: [Pg.399]    [Pg.425]    [Pg.427]    [Pg.193]    [Pg.188]    [Pg.772]    [Pg.787]    [Pg.410]    [Pg.436]    [Pg.437]    [Pg.439]    [Pg.310]    [Pg.311]    [Pg.312]    [Pg.313]    [Pg.314]    [Pg.315]    [Pg.316]    [Pg.800]    [Pg.801]    [Pg.820]    [Pg.828]    [Pg.829]    [Pg.844]    [Pg.849]    [Pg.735]    [Pg.753]    [Pg.753]    [Pg.787]    [Pg.801]    [Pg.801]    [Pg.803]    [Pg.176]    [Pg.812]    [Pg.832]    [Pg.833]    [Pg.835]    [Pg.850]   
See also in sourсe #XX -- [ Pg.288 ]

See also in sourсe #XX -- [ Pg.288 ]

See also in sourсe #XX -- [ Pg.425 , Pg.426 , Pg.427 ]



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