Interchange rules

By virtue of the commutation rules (9-636) these amplitudes are symmetric under the interchange (k,A( k,A,) thus verifying the Bose... 

Here V = (N Vj + N2S2) / N + N2) is the mean velocity of the pair of cells. By summing over the particles in cell 1 it is easy to verify that velocities normal to collision rule treats the particles in the two cells as groups that undergo elasticlike collisions. 

Selectivity and specificity are important performance characteristics of analytical procedures, especially in connection with validation processes. Nevertheless, both terms are used mostly verbal and a quantification is avoided, as a rule (IUPAC see Vessman et al. [2001]). Moreover, the concepts of selectivity and specificity are used interchangeably and synonymously. Occasionally, specificity is regarded as an intensification of selectivity, viz. the ultimate of selectivity (den Boef and Hulanicki [1983] Persson and Vessman [1998, 2001] Prichard et al. [2001]). 

Based on the reversibility of their phase transformation behavior, polymorphs can easily be classified as being either enantiotropic (interchange reversibly with temperature) or monotropic (irreversible phase transformation). Enantiotropic polymorphs are each characterized by phase stability over well-defined temperature ranges. In the monotropic system, one polymorph will be stable at all temperatures, and the other is only metastable. Ostwald formulated the rule of successive reactions, which states that the phase that will crystallize out of a melt will be the state that can be reached with the minimum loss of free... 

The difference between that and which may appear to be subtle, but the improper use of these two vital words can alter the interpretation of a sentence. You will often see and hear that and which used interchangeably. Nonetheless, you should strive to use the words as endorsed by The ACS Style Guide to ensure a correct Interpretation of your written work. Remember the following rules ... 

Accdg to TM 9-1985-4 (1953) (Ref 2, p 1), the Japanese Army (Rikugun) and Navy (Kaigun) had during WWII separate Air Forces (Kugun), each of which employed its own distinct bombs and fuzes (Shinkan). For the most part the Army and Navy bombs and fuzes cannot be used interchangeably. Special adapters have been developed, however, which allowed.some flexibility of this rule... 

TT-Electron delocalization in isoxazole seems to be more effective than in oxazole however, isothiazole is less aromatic than thiazole thus it is not a general rule that 1,2-diazoles possess higher aromaticity in comparison with 1,3-diazoles. Oxygen-containing heterocycles are always less aromatic than their sulfur and nitrogen counterparts, e.g. thiazole > imidazole > > oxazole. At the same time, the relative aromaticity of S- and N-containing heterocycles can interchange (pyrazole > isothiazole > isoxazole). 

For polyhalogentated n-alkanes, the following rule regarding interchange of halogen atoms has been given ... 

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