Page 107 - Modeling of Chemical Kinetics and Reactor Design
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Thermodynamics of Chemical Reactions   77

                              where  C  is in cal/mol K or J/mol K and  T is in degrees Kelvin
                                      p i
                              (1 cal = 4.184 J).
                                If stoichiometric quantities of the reactants enter and the products
                              leave at the same temperature as represented by the equation:

                                α A + α B → α C + α D                                    (2-95)
                                        2
                                                3
                                  1
                                                       4
                                Equation 2-95 represents a reaction at a temperature different from
                              the standard state of 25°C (298 K) in stoichiometric quantities. Figure
                              2-2 shows the information for calculating the heat of reaction.














































                              Figure 2-2. Heats of reaction at temperature other than standard condition.
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