Bookkeeping designations

The discrete factor solvent number is recognized as a simple bookkeeping designation. We can replace it with the continuous factor dipole moment expressed on a ratio scale and obtain, finally, the response surface shown in Figure 2.13. A special note of caution is in order. Even when data such as that shown in Figure 2.13 is obtained, the suspected property might not be responsible for the observed effect it may well be that a different, correlated property is the true cause (see Section 1.2 on masquerading factors). 

The discrete factor solvent number is recognized as a simple bookkeeping designation. We can replace it with the continuous factor dipole moment and obtain, finally, the response surface shown in Figure 2.13. 

A change in one part of the equation due to an economic transaction must be accompanied by an equal change in another place— therefore, the term double-entry bookkeeping. On a page of an account, the left-hand side is designated the debit side and the right-hand side is the credit side. This convention holds regardless of the type of account. Therefore, for every economic transaction, there is an entry on the debit side balanced by the same entry on the credit side. 

As a simple example, consider the case of the adsorption of a gas-phase molecule, A, on a surface. The surface is composed of either open sites or adsorbed molecules. In this formalism, there are two surface species one corresponding to the adsorption location, the open site, designated O(s), and the adsorbed molecule, A(s). The site fractions of O(s) and A(s) surface species must sum to unity. There is one surface phase in this case. In this trivial example, such overhead and formal definitions are unnecessarily complicated. However, in complex systems involving many surface phases and dozens of distinct surface species, the discipline imposed by the formalism helps greatly in bookkeeping and in ensuring that the fundamental conservation laws are satisfied. 

Developers and Tool Support Processes of human actors are supported by new semantical tool functionality, concentrating on major design steps and/or eliminating bookkeeping effort. 

Recycle reactors are used (1) when conversion of unwanted (toxic) produi is required and they are recycled to extinction. (2) the reaction is autoca lytic or (3) it is necessary to maintain isothermal operation. To design rccyr reactors, one simply follovvs the procedure developed in this chapter and th adds a little additional bookkeeping. 

First, a stoichiometric table will be constructed to help with the molecular bookkeeping. Using the stoichiometric table, the variables Ca, Na, and V can be written as functions of xa- Finally, the design equation for an ideal batch reactor can be written and integrated to give the desired relationship between xa and t. If xa is known, the complete composition of die gas mixture can be calculated using the relationships in the stoichiometric table. 

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