Isothermal Analysis of Experimental Rate Data

COUPLED HEAT AND MASS TRANSFER IN BATCH REACTORS 

The coefficient of dNi/dt in the summation of (6-4) is defined as the partial molar internal energy of species i, because differentiation with respect to mole numbers of component i is performed at constant T, p and mole numbers of all other species in the mixture. The unsteady-state mass balance for species i in a batch reactor, 

When the product of v, and the partial molar internal energy of species i is summed over all components in the system, one obtains an exact expression for the molar internal energy change for the reaction (see Tester and Modell, 1997, pp. 769-770). In other words. 

For isothermal operation of a constant-volume batch reactor, the closed-system thermal energy balance can be simplified as follows  

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